349707

Appears in sequences

• Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 7 (most significant digit on right).at n=16A061960
• G.f.: exp( Sum_{n>=1} [Sum_{k>=1} k^(n^2) * x^k]^n / n ), a power series in x with integer coefficients.at n=5A276749