25354domain: NAppears in sequencesa(n) = floor(n^3 / e).at n=41A032636Numbers k such that R_(k+2) + 4*10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=11A256928A digitized pure tuning tone, sampled at standard settings for consumer audio: a(n) = floor(sin(2*Pi*(440/44100)*n)*32767).at n=36A320277