24008
domain: N
Appears in sequences
- Taylor series related to one in Ramanujan's Lost Notebook.at n=29A006305
- Integer part of ((4th elementary symmetric function of 2,3,...,n+4)/(2nd elementary symmetric function of 2,3,...,n+4)).at n=29A024181
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 77.at n=33A031575
- Triangular array generated by its row sums: T(n,0) = 1 for n >= 0, T(n,1) = r(n-1), T(n,k) = T(n,k-1) - (-1)^k * r(n-k) for k = 2, 3, ..., n, n >= 2, r(h) = sum of the numbers in row h of T.at n=49A054090
- Construct sequences P,Q,R by the rules: Q = first differences of P, R = second differences of P, P starts with 1,3,9, Q starts with 2,6, R starts with 4; at each stage the smallest number not yet present in P,Q,R is appended to R. Sequence gives P.at n=46A225385
- Number of compositions of n into parts with distinct multiplicities and with exactly eight parts.at n=33A321778
- Number of subsets of {1..n} such that only one set can be obtained by choosing a different prime factor of each element.at n=22A370584
- Number of subsets of {1..n} containing n such that only one set can be obtained by choosing a different prime factor of each element.at n=23A370588