# A293309 (b-file synthesized from sequence entry) 0 1 1 123 2 3281 3 39175 4 286555 5 1508401 6 6271378 7 21836366 8 66220705 9 179784715 10 445824731 11 1025102013 12 2211041131 13 4514532465 14 8789910980 15 16416797116 16 29556115153 17 51502789451 18 87162399205 19 143684487475 20 231291309931 21 364347612673 22 562724586326