# A019159 (b-file synthesized from sequence entry) 3 0 4 0 5 4 6 4 7 7 8 30 9 50 10 105 11 308 12 634 13 1376 14 3553 15 8630 16 20869 17 52340 18 133033 19 342799 20 883814 21 2295764 22 6043202 23 15919001 24 41993543 25 111425390 26 296103536 27 787274963 28 2097945858 29 5598391955 30 14950833524 31 39977574004