# A134818 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 37 5 146 6 772 7 4449 8 30307 9 228605 10 1921464 11 17652327 12 176162548 13 1893738334 14 21806975279 15 267636988052 16 3486370839295 17 48029272657002 18 697542580286159 19 10649954607360119 20 170508064788069346 21 2856122791685125616 22 49951625299057923405