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Jun
27
comment combinatorics counting sets with a one element having values in another set
and seems also it will better scale than putting all the k elts inline $ 2^{n-1+k}-1 $
Jun
27
accepted combinatorics counting sets with a one element having values in another set
Jun
27
comment combinatorics counting sets with a one element having values in another set
ok and seems to work for the example, thx
Jun
27
revised combinatorics counting sets with a one element having values in another set
added 3 characters in body
Jun
27
asked combinatorics counting sets with a one element having values in another set
May
31
accepted how many different possible pairs are there in a n-tuple?
May
31
awarded  Commentator
May
31
comment how many different possible pairs are there in a n-tuple?
@Shaktal $(n)_a$ is $\binom{n}{a} * a!$ like said in the ncmath's answer?
May
31
comment how many different possible pairs are there in a n-tuple?
ah right (a,b) and (b,a) is the same unordered pair
May
30
comment Integer sequence comparison, binomials Vs power
yes wrong calcul
May
30
comment Integer sequence comparison, binomials Vs power
it's round(x)-1
May
30
revised Integer sequence comparison, binomials Vs power
added 58 characters in body
May
30
asked Integer sequence comparison, binomials Vs power
May
30
comment how many different possible pairs are there in a n-tuple?
there should be more unordered than ordered?
May
30
comment how many different possible pairs are there in a n-tuple?
what is equal your second result $(n)_2$, please
May
30
asked how many different possible pairs are there in a n-tuple?
May
30
accepted factorial Vs power sequence
May
30
comment factorial Vs power sequence
well I see your point n! is > a^n for n>a/2 right?
May
30
comment factorial Vs power sequence
you could give a simple proof, something like n! > (n/4)^n for n>5 maybe
May
30
asked factorial Vs power sequence