# A195503 (b-file synthesized from sequence entry) 1 4 2 15 3 56 4 209 5 780 6 2911 7 10864 8 40545 9 151316 10 564719 11 2107560 12 7865521 13 29354524 14 109552575 15 408855776 16 1525870529 17 5694626340 18 21252634831 19 79315912984 20 296011017105 21 1104728155436 22 4122901604639 23 15386878263120 24 57424611447841