# A153527 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 22 4 56 5 295 6 2298 7 20666 8 194155 9 2700996 10 51521837 11 1239525245 12 36497293583 13 1416042960537 14 72342354105238 15 4760390278139941 16 400064661916351750