# A011928 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 1 5 6 6 20 7 46 8 93 9 168 10 280 11 440 12 660 13 953 14 1334 15 1820 16 2426 17 3173 18 4080 19 5168 20 6460 21 7980 22 9753 23 11806 24 14168 25 16866 26 19933 27 23400 28 27300 29 31668 30 36540 31 41953 32 47946 33 54560 34 61834 35 69813 36 78540 37 88060 38 98420 39 109668 40 121853 41 135026 42 149240