# A025950 (b-file synthesized from sequence entry) 0 1 1 24 2 387 3 5306 4 66969 5 806148 6 9425599 7 108151662 8 1225448037 9 13766224472 10 153719012811 11 1709234017218 12 18948174785905 13 209602732183596 14 2315012544644823 15 25540197959076374 16 281542657422715773