# A150016 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 18 4 66 5 244 6 969 7 3882 8 15884 9 66549 10 279371 11 1192017 12 5139781 13 22231883 14 97151958 15 426603705 16 1881495031 17 8351057769 18 37165328425 19 166110559004 20 745346186757 21 3351665129165 22 15125494941915 23 68426069505670 24 310206953710543 25 1410144514408499 26 6421163357993262 27 29297942391071343