310939domain: NAppears in sequencesa(n) = 441*n^2 - 394*n + 88.at n=26A157734Numbers k such that primorial base expansion of A276086(k) has the primorial base expansion of A003415(k) as its suffix, where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.at n=36A383933