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.

Showing 1-1 of 1 results.

A129248 a(n) = n-th prime of class 14- according to the Erdős-Selfridge classification.

Original entry on oeis.org

377982107, 437391349, 716174549, 742922699, 1385934359, 1603768277, 1780127639, 1790436371, 1895437139, 1968261067, 2066951933, 2109424013, 2148523669, 2150787839, 2238778847, 2299583987, 2334899909, 2368121663
Offset: 1

Views

Author

M. F. Hasler, Apr 05 2007, Apr 21 2007

Keywords

Comments

a[1..2] calculated using A081641[1..11]; a[3] <= 716174549.

Crossrefs

Programs

Formula

{ a(n) } = { p = 2*m*A081641(k)+1 | k=1,2,...,oo and m=1,2,... such that p is prime and m has no factor of class > 13- }
Showing 1-1 of 1 results.