# A294593 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 6 5 22 6 88 7 372 8 1636 9 7406 10 34276 11 161436 12 771238 13 3728168 14 18201830 15 89622696 16 444533010 17 2219057382 18 11139859864 19 56203325212 20 284828848740 21 1449270351504