277248

Appears in sequences

• A modified Heron sequence starting from 1, 2.at n=9A134588
• Number of permutations of floor(i*8/5), i=0..n-1, with all sums of 5 adjacent terms unique.at n=8A152363
• E.g.f.: 1/(1-x) * Product_{k>0} (1 + sinh(x^k/k)).at n=8A270597
• Number of n X 5 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=7A302078
• Numbers with prime factorization Product_{k=1..w} prime(i_k) ^ e_k (where w = A001221(n) and prime(i) denotes the i-th prime number) such that i_k <> e_k for k = 1..w and { i_1, ..., i_w } = { e_1, ..., e_w }.at n=36A320252