# A261236 (b-file synthesized from sequence entry) 0 0 1 1 2 3 3 7 4 16 5 40 6 104 7 279 8 758 9 2071 10 5678 11 15609 12 43035 13 119139 14 331616 15 928572 16 2614743 17 7396880 18 20999683 19 59784414 20 170615755 21 488073987 22 1399625614 23 4023315793 24 11590737827 25 33452982391