# A124632 (b-file synthesized from sequence entry) 0 1 1 0 2 3 3 4 4 24 5 44 6 171 7 388 8 1166 9 2808 10 7344 11 17281 12 41569 13 93936 14 211251 15 456531 16 972231 17 2009719 18 4083805 19 8100885 20 15793128 21 30169374 22 56685408 23 104633216 24 190186136 25 340286657 26 600267525 27 1044006248 28 1792246370 29 3037619066 30 5087101373 31 8420649189