# A127620 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 22 4 117 5 654 6 3843 7 22882 8 137443 9 827998 10 4995443 11 30155494 12 182083275 13 1099560942 14 6640309323 15 40101959542 16 242184540139 17 1462610652718 18 8833070227499 19 53345145429670 20 322164911643723 21 1945636121710110