Numerators of the coefficients in power series expansion of exp(2x/(1-x)).

A067654

Numerators of the coefficients in power series expansion of exp(2x/(1-x)).

Terms

    a(0) =2a(1) =4a(2) =22a(3) =38a(4) =314a(5) =1504a(6) =16346a(7) =24796a(8) =331906a(9) =2426404a(10) =38445118a(11) =163944598a(12) =2993870654a(13) =2647864592a(14) =601353085846a(15) =820420721222

External references