# A132464 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 0 6 1 7 48 8 735 9 6272 10 37044 11 169344 12 640332 13 2090880 14 6073353 15 16032016 16 39078039 17 89037312 18 191456720 19 391523328 20 766192176 21 1442244096 22 2622518073 23 4623197040 24 7925786407 25 13248326784 26 21641442900 27 34616067200 28 54311107500 29 83710972800