# A077634 (b-file synthesized from sequence entry) 1 2 2 6 3 30 4 18 5 90 6 54 7 106260 8 162 9 26040 10 486 11 341725784400 12 1458 13 6564164506066423389173040 14 4374 15 177815552218920 16 13122 17 2998833665484118393000638135815684490471025925316000 18 39366