# A076958 (b-file synthesized from sequence entry) 1 0 2 2 3 5 4 16 5 42 6 111 7 296 8 793 9 2130 10 5796 11 15788 12 43370 13 119711 14 332449 15 927748 16 2600623 17 7319908 18 20677806 19 58604898 20 166595953 21 474868192 22 1356904893 23 3885983995 24 11151740822 25 32062866197 26 92345080709 27 266390632933