# A367115 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 18 5 52 6 184 7 688 8 2512 9 8864 10 30784 11 107648 12 384432 13 1403872 14 5205568 15 19443328 16 72817856 17 273199488 18 1027939072 19 3883718144 20 14741042464 21 56189409088 22 214931447680 23 824443822848 24 3169934397184 25 12214858010112 26 47168251137024