# A132838 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 7 4 22 5 78 6 273 7 984 8 3573 9 13138 10 48670 11 181625 12 681630 13 2570979 14 9738171 15 37021873 16 141199583 17 540058408 18 2070814185 19 7958280782 20 30646175351 21 118230058466 22 456879024997 23 1768206394844 24 6852795439360 25 26592367534410