Numerators in Taylor series for tan(x). Also from Taylor series for tanh(x).

A002430

Numerators in Taylor series for tan(x). Also from Taylor series for tanh(x).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =17a(4) =62a(5) =1382a(6) =21844a(7) =929569a(8) =6404582a(9) =443861162a(10) =18888466084a(11) =113927491862

External references