102690
domain: N
Appears in sequences
- Thickened cube numbers: a(n) = n*(n^2 + (n-1)^2) + (n-1)*2*n*(n-1).at n=29A050492
- Numbers k such that 10^k == -1 (mod k-1).at n=3A055693
- Least k such that prime(n)^3 divides binomial(2k,k).at n=16A110496
- a(n) = 2*a(n-1) - a(n-3) + a(floor(n/2)) + a(floor(n/3)) + ... + a(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.at n=20A298406