# A018129 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 2 4 4 5 6 6 8 7 12 8 17 9 25 10 36 11 51 12 73 13 105 14 150 15 216 16 309 17 442 18 632 19 905 20 1296 21 1854 22 2653 23 3797 24 5434 25 7776 26 11127 27 15922 28 22784 29 32604 30 46656 31 66763 32 95536 33 136709 34 195626 35 279936 36 400579 37 573217 38 820256