Write cosec x = 1/x + Sum_{n>=1} e_n * x^(2n-1)/(2n-1)!; sequence gives numerators of e_n.

A036282

Write cosec x = 1/x + Sum_{n>=1} e_n * x^(2n-1)/(2n-1)!; sequence gives numerators of e_n.

Terms

    a(0) =1a(1) =7a(2) =31a(3) =127a(4) =511a(5) =1414477a(6) =8191a(7) =118518239a(8) =5749691557a(9) =91546277357a(10) =162912981133

External references