# A011927 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 1 5 7 6 21 7 49 8 98 9 177 10 296 11 465 12 698 13 1009 14 1413 15 1927 16 2569 17 3360 18 4320 19 5472 20 6840 21 8449 22 10327 23 12501 24 15001 25 17858 26 21105 27 24776 28 28905 29 33530 30 38689 31 44421 32 50767 33 57769 34 65472 35 73920