# A016878 (b-file synthesized from sequence entry) 0 64 1 117649 2 2985984 3 24137569 4 113379904 5 387420489 6 1073741824 7 2565726409 8 5489031744 9 10779215329 10 19770609664 11 34296447249 12 56800235584 13 90458382169 14 139314069504 15 208422380089 16 304006671424