# A049313 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 2 6 6 7 12 8 79 9 792 10 19576 11 886288 12 75369960 13 11856006240 14 3467430423264 15 1893448825054528 16 1938818712501985736 17 3737086626658278741376 18 13606268915761294708760704 19 93863103860384959101157737728