# A150833 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 32 4 136 5 594 6 2674 7 12192 8 56252 9 262166 10 1231614 11 5819164 12 27637200 13 131855458 14 631385426 15 3032777480 16 14608882116 17 70545450862 18 341384364454 19 1655193837812 20 8039154612280 21 39105952390138 22 190492183707386 23 929104570882912 24 4536876256793644 25 22177212994099974 26 108512065189640142