# A068804 (b-file synthesized from sequence entry) 0 0 1 1 2 3 3 6 4 10 5 21 6 45 7 78 8 120 9 190 10 210 11 231 12 435 13 465 14 9180 15 9870 16 12403 17 24310 18 24531 19 47586 20 109278 21 231540 22 235641 23 246753 24 327645 25 541320 26 542361 27 921403 28 1053426 29 1345620 30 1360425