Product_{n>=1} (1 + x^n/n!)^a(n) = exp(-x)/(1 - x).

A353822

Product_{n>=1} (1 + x^n/n!)^a(n) = exp(-x)/(1 - x).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =9a(4) =24a(5) =110a(6) =720a(7) =5985a(8) =39200a(9) =343224a(10) =3628800a(11) =41295870a(12) =479001600a(13) =6130959120a(14) =87104969952

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