# A027996 (b-file synthesized from sequence entry) 2 6 3 26 4 106 5 424 6 1684 7 6667 8 26352 9 104069 10 410806 11 1621325 12 6398688 13 25254823 14 99691822 15 393600358 16 1554333406 17 6139498384 18 24256359424 19 95857063972 20 378903471934 21 1498090689910 22 5924490920776 23 23435015022946 24 92721024432286