# A046843 (b-file synthesized from sequence entry) 1 2 2 4 3 8 4 12 5 16 6 40 7 80 8 314 9 478 10 604 11 634 12 790 13 868 14 1264 15 1376 16 2536 17 3544 18 6564 19 7268 20 7780 21 8366 22 15010 23 16636 24 18672 25 27084 26 29954 27 51968 28 60940