43982domain: NAppears in sequencesNumbers with no 1's in base 3, 4 & 10 expansions.at n=32A117564Sum of all parts of the last section of the set of partitions of n.at n=30A138879Numbers k such that (10^(2k+1) - 6*10^k - 1)/3 is prime.at n=21A183174Numbers k such that 22*10^k + 3 is prime.at n=19A293534