# A012006 (b-file synthesized from sequence entry) 0 1 1 2 2 46 3 1112 4 63376 5 4635872 6 523749136 7 76049858432 8 14634264866176 9 3496967323112192 10 1032537134569578496 11 366067157640456292352 12 154146217678162805226496 13 75874517780279404503590912