# A123358 (b-file synthesized from sequence entry) 0 1 1 10 2 125 3 1625 4 21250 5 278125 6 3640625 7 47656250 8 623828125 9 8166015625 10 106894531250 11 1399267578125 12 18316650390625 13 239768066406250 14 3138604736328125 15 41084869384765625 16 537807922363281250 17 7039997100830078125 18 92154758453369140625 19 1206321449279785156250 20 15790952777862548828125 21 206706255435943603515625