# A151010 (b-file synthesized from sequence entry) 0 1 1 2 2 9 3 39 4 178 5 840 6 4007 7 19340 8 94128 9 460168 10 2259995 11 11132979 12 54970170 13 271972002 14 1347631186 15 6685969540 16 33205872514 17 165056176495 18 821039167010 19 4086584248983 20 20350736261471 21 101389521255599 22 505325574326270 23 2519374282327881 24 12564325986981825 25 62675050088092712 26 312713124134785503