cp's OEIS Frontend

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.

A176272 Primes of the form 2(10^n-1)/3 * 10^ceiling(log_10(n+1)) + n.

Original entry on oeis.org

61, 66666667, 6666666666666666666666666666666666666666641
Offset: 1

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Author

Rick L. Shepherd, Apr 13 2010

Keywords

Comments

Equivalently, primes with decimal representation as n 6's with n's decimal representation concatenated. The next term is too large to include (2433 decimal digits).

Crossrefs

Cf. A176090 (corresponding n), A065589, A037065.

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

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