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.

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A100758 Greatest prime factor of the concatenation of terms of the n-th row of the triangle formed by the Stirling number of the second kind.

Original entry on oeis.org

11, 131, 587, 1646443, 6827, 18011869, 9120065483, 363724245921599, 975761724248252813688864599, 17542508725666616033, 111131968773953028264114836512440131291369683
Offset: 2

Views

Author

Amarnath Murthy, Nov 23 2004

Keywords

Comments

Are these concatenations squarefree?

Examples

			a(4) = 587 is the greatest prime factor of 1761 =3*587.

Crossrefs

Cf. A100755, A100756, A100757, A008277.

Formula

a(n) = A006530[A061113(n)]. - R. J. Mathar, Aug 07 2007

Extensions

More terms from R. J. Mathar, Aug 07 2007
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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