# A344501 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 10 4 40 5 176 6 916 7 4852 8 27350 9 163270 10 1009396 11 6504356 12 43400512 13 298682320 14 2118282440 15 15433768456 16 115345136566 17 882900083222 18 6910879999420 19 55255039432300 20 450744068706896 21 3747796352076736 22 31734090674951512 23 273414453918459800 24 2395202886317347900