# A157311 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 4 4 13 5 66 6 394 7 2759 8 22005 9 198049 10 1979646 11 21776107 12 261287398 13 3396736175 14 47553219799 15 713298307974 16 11412712029909 17 194016104508454 18 3492285524896921 19 66353424973041500 20 1327068107226627278 21 27868430252187313730 22 613105422439139763585