31762domain: NAppears in sequencesNumbers k such that 3*k! + 1 is prime.at n=22A076679Number of 6-cycles in the n X n king graph.at n=17A288920Growth of the Lamplighter group: number of elements in the Lamplighter group L_2 = Z/2Z wr Z of length up to n with respect to the standard generating set {a,t}.at n=16A294683