# A327025 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 11 4 40 5 165 6 930 7 6109 8 47364 9 416259 10 4092332 11 44424105 12 527512456 13 6798907261 14 94504292830 15 1408973416983 16 22426222792568 17 379522092608193 18 6804315178122972 19 128828842646944153 20 2568533750232696472 21 53788282243854348683 22 1180357162840669081094