# A014980 (b-file synthesized from sequence entry) 0 5 1 6 2 9 3 20 4 100 5 2500 6 1562500 7 610351562500 8 93132257461547851562500 9 2168404344971008868014905601739883422851562500 10 1175494350822287507968736537222245677818665556772087521508751706278417259454727172851562500