# A019142 (b-file synthesized from sequence entry) 3 0 4 2 5 1 6 4 7 6 8 16 9 25 10 104 11 144 12 666 13 1078 14 3264 15 7969 16 18762 17 48833 18 124845 19 310324 20 813758 21 2063236 22 5352749 23 13889492 24 35962972 25 94019550 26 245375231 27 643356339 28 1692200330 29 4457714666 30 11776895987 31 31184936750