# A339712 (b-file synthesized from sequence entry) 1 1 2 5 3 28 4 273 5 3126 6 46948 7 823544 8 16781441 9 387421948 10 10000078446 11 285311670612 12 8916102176891 13 302875106592254 14 11112006865913416 15 437893890382064056 16 18446744074783625217 17 827240261886336764178 18 39346408075327954053967 19 1978419655660313589123980