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2d
comment Smallest integer $k$ so that no Sudoku grid has exactly $k$ solutions
according to wikipedia, the blank sudoku allows 6,670,903,752,021,072,936,960 number of solutions, so the number we seek is less than that :P. Also, I guess this implies that there is no sudoku that admits exactly 6,670,903,752,021,072,936,959 solutions :D
2d
comment Smallest integer $k$ so that no Sudoku grid has exactly $k$ solutions
@Mauris: Sure, i added it now. its pretty basic, but less complicated means fewer bugs usually.
2d
revised Smallest integer $k$ so that no Sudoku grid has exactly $k$ solutions
added 1396 characters in body
2d
awarded  Nice Question
Aug
27
awarded  Peer Pressure
Aug
26
comment Permutations of given length
This is undergraduate level combinatorics, I suggest to migrate question to stackexchange instead.
Aug
26
awarded  Revival
Aug
22
comment Evaluating $\int \frac{\sin\left(x\right)}{1+x^2}dx$
Mathematica says that this is not expressible in terms of elementary functions.
Aug
22
answered Smallest integer $k$ so that no Sudoku grid has exactly $k$ solutions
Aug
22
comment Smallest integer $k$ so that no Sudoku grid has exactly $k$ solutions
Yes, maybe do a computer search... that would be a fun computer exercise!
Aug
8
awarded  Yearling
Jul
2
awarded  Nice Question
Jun
25
comment Bayes' Rule where the probabilities are taken as conditional
this is more suitable over at math.stackexchange
Jun
18
comment Solving a Recurrence for a Mathematical Game
What is a pattern? It's clear that the sequence is eventually repeating since the recurrence only depend on the previous m values, and there are only 2^m combinations
Jun
18
comment Game on simple finite graphs
That's correct hardmath. I do have trouble to incorporate this in some general thing. Also,I checked cycle graphs, but it is just as confusing
Jun
18
comment Fixed Point with Permutation
Search oeis. You will probably find it there
Jun
18
comment Prove a matrix of binomial coefficients over $\mathbb{F}_p$ satisfies $A^3 = I$.
A can be factored as $BB^T$ for a triangular matrix B consisting of elements from pascals triangle using LU decomposition. This should not be hard to show. This might help but I have no idea.
Jun
17
comment Game on simple finite graphs
Ah, i think someone made an edit and changed non-negative to positive integers. Now it should be fine.
Jun
17
revised Game on simple finite graphs
added 4 characters in body
Jun
17
revised Game on simple finite graphs
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