# A325808 (b-file synthesized from sequence entry) 1 1 2 6 3 28 4 120 5 259 6 496 7 8128 8 18990 9 667296 10 1858939 11 2097414 12 2383279 13 4843717 14 33550336 15 150588313 16 186695863 17 188908297