# A148260 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 14 5 33 6 111 7 303 8 1110 9 3208 10 12008 11 36659 12 140407 13 443934 14 1728381 15 5621637 16 22157625 17 73695819 18 293433309 19 993846730 20 3989790974 21 13719801711 22 55458702423 23 193168626049 24 785413014326 25 2765967573176 26 11302988484052 27 40187871318426 28 164946452733297 29 591408009949277 30 2436722533087948