# A069736 (b-file synthesized from sequence entry) 0 1 1 2 2 13 3 150 4 2541 5 57330 6 1623105 7 55405350 8 2216439225 9 101738006370 10 5271938032725 11 304455567165750 12 19391501988260325 13 1350480167457671250 14 102096314890336391625 15 8327231070135771543750 16 728877648485930118800625