118940domain: NAppears in sequencesBase 5 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,3,0.at n=7A037696Number of Carmichael numbers between 2^n and 2^(n+1).at n=54A182490n * (11*n^2 + 6*n + 1) / 6.at n=40A215646