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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A323060 a(n) = R_(prime(n)#) / Product_{j=1..n} R_(prime(j)), where prime(n)# is the n-th primorial number A002110(n) and R_k = (10^k - 1)/9.

Table of values

n a(n)
1 1
2 91
3 8190090090909099099181

List of values

[1, 91, 8190090090909099099181]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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