# A201923 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 44 4 581 5 10256 6 227529 7 6088256 8 190930729 9 6870227200 10 279066777613 11 12632667642880 12 630670054092525 13 34426087332253696 14 2039903110075608977 15 130404672744539242496 16 8946117466489960168913 17 655585000075494566199296 18 51111210765059412626238741