60683domain: NAppears in sequencesNumerators of increasingly better rational approximations to Pi with increasing denominators (3/1, 13/4, 16/5, 19/6, 22/7, 179/57, ...)at n=38A063674p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S^3 - S^4.at n=19A291402