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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A085066 a(1) = 6, a(n) = smallest number of the form k*a(n-1) +1 with the same prime signature p*q (6 = 2*3), where p and q are primes.

Original entry on oeis.org

6, 55, 111, 334, 335, 671, 1343, 16117, 16118, 64473, 64474, 257897, 2063177, 8252709, 41263546, 123790639, 371371918, 1485487673, 2970975347, 59419506941, 356517041647, 5704272666353, 11408545332707, 262396542652262
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 29 2003

Keywords

Comments

Is this the same as A085067? - R. J. Mathar, Aug 28 2025

Crossrefs

A061092 gives the sequence with a(1) = 2 i.e. terms of the form k*a(n-1)+1 which are primes.( prime signature p^1)
Cf. A061092, A085065.

Extensions

Corrected and extended by David Wasserman, Jan 11 2005
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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