382976
domain: N
Appears in sequences
- a(n) = n*(n+1)*(n+2)*(n^2+7*n+32)/120.at n=31A051747
- Binomial transform, alternating in sign, of Lucas generalized numbers S(n): S(n) = S(n-1) + S(n-2) + S(n-3), S(0)=3, S(1)=1, S(2)=3.at n=29A073314
- a(n) = binomial(n+2,3)*4^3.at n=31A141478
- Numbers k with the property that it is possible to write the base 2 expansion of k as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have a' * b' = k, where a' and b' are the arithmetic derivatives of a and b.at n=22A259675
- Number of colored compositions of n using all colors of a 2-set such that all parts have different color patterns and the patterns for parts i are sorted and have i colors in (weakly) increasing order.at n=15A327841
- a(n) = (1/3)*n^5 + (1/2)*n^4 + (1/6)*n^3.at n=16A373561