243269632domain: NAppears in sequencesa(n) = n*2^(n-6).at n=23A078836a(n) = 0^n/2 + 2^n*(n^2+n+2)/4.at n=21A087431Smallest number beginning with the digits of n that has exactly n prime factors (counted with multiplicity).at n=23A109686Second differences of A129952.at n=25A129954Row sums of triangle A133935.at n=25A131352