163705
domain: N
Appears in sequences
- Triangle P, read by rows, such that P^3 transforms column k of P into column k+1 of P, so that column k of P equals column 0 of P^(3*k+1), where P^3 denotes the matrix cube of P.at n=31A113370
- Column 3 of triangle A113370, also equals column 0 of A113370^10.at n=4A113373
- Triangle, read by rows, given by the product R^2*Q^-1 = Q^3*P^-2 using triangular matrices P=A113370, Q=A113381, R=A113389.at n=23A114150
- Number of powerful numbers k that are not powers of primes (i.e., k is in A286708) that do not exceed the primorial number A002110(n).at n=10A380430