# A027631 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 6 4 15 5 24 6 49 7 78 8 141 9 219 10 364 11 550 12 861 13 1261 14 1884 15 2682 16 3856 17 5350 18 7452 19 10100 20 13699 21 18183 22 24104 23 31404 24 40816 25 52297 26 66809 27 84334 28 106110 29 132164 30 164062 31 201896 32 247626 33 301429 34 365727 35 440818 36 529656 37 632693