# A011944 (b-file synthesized from sequence entry) 0 0 1 2 2 28 3 390 4 5432 5 75658 6 1053780 7 14677262 8 204427888 9 2847313170 10 39657956492 11 552364077718 12 7693439131560 13 107155783764122 14 1492487533566148 15 20787669686161950 16 289534888072701152