# A197465 (b-file synthesized from sequence entry) 1 1 2 2 3 2 4 6 5 8 6 22 7 42 8 112 9 252 10 650 11 1584 12 4091 13 10369 14 26938 15 69651 16 182116 17 476272 18 1253067 19 3302187 20 8733551 21 23142116 22 61477564 23 163612714 24 436278921 25 1165218495 26 3117021788