# A033091 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 4 4 13 5 40 6 49 7 65 8 399 9 2076 10 11626 11 12156 12 12190 13 16992 14 87983 15 717895 16 2186175 17 4327480 18 7928565 19 8130547 20 12139891 21 54517279 22 67728780 23 264656137 24 410041022 25 2970688427 26 13126642049 27 19585729892 28 71713995073