# A136792 (b-file synthesized from sequence entry) 0 1 1 4 2 17 3 70 4 297 5 1342 6 6519 7 34006 8 189647 9 1125180 10 7070043 11 46861668 12 326509757 13 2384118432 14 18194367189 15 144769455298 16 1198423872693 17 10301330797778 18 91782832060611 19 846291315842738 20 8063691844581123 21 79290580233274024 22 803613726879441863 23 8385262925870388104