# A004376 (b-file synthesized from sequence entry) 8 1 9 63 10 2415 11 73150 12 1929501 13 46504458 14 1052618392 15 22760723700 16 475491062970 17 9672348219898 18 192657357567675 19 3773073433365600 20 72880766421258705 21 1391807041381659420 22 26327386978706181060