179654domain: NAppears in sequencesNumbers k such that k divides the (right) concatenation of all numbers <= k written in base 22 (most significant digit on right).at n=41A029515G.f.: Sum_{n>=0} (2 + x^n)^n * x^n / (1-x)^(n+1).at n=11A244615Number of n-bit binary reversible primes.at n=24A366910