34652domain: NAppears in sequencesBase 5 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,0.at n=6A037522Number of permutations of length n which avoid the patterns 1432, 2314, 2413.at n=9A116736a(n) = Sum_{k=1..n} mu(k)*k^4.at n=20A336278