Expansion of 1/(1 - 49*x)^(2/7).A386271Expansion of 1/(1 - 49*x)^(2/7).Terms a(0) =1a(1) =14a(2) =441a(3) =16464a(4) =662676a(5) =27832392a(6) =1201431588a(7) =52862989872External referencesoeis: A386271