# A161987 (b-file synthesized from sequence entry) 0 1 1 32 2 527 3 5952 4 51831 5 370976 6 2271896 7 12237280 8 59146604 9 260441632 10 1057250877 11 3994502272 12 14156055636 13 47361532160 14 150411609649 15 455543049760 16 1321024921186 17 3680779823776 18 9884216117666 19 25650056954016