69995domain: NAppears in sequencesSmallest multiple of 5 with digit sum n.at n=37A069534Indices k such that s_k(4) is a (probable) prime, where s_k(4) = 4*s_{k-1}(4) - s_{k-2}(4), k >= 2, s_0(4) = 1, s_1(4) = 5.at n=24A299100