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.

A051902 Minimal primorial safe primes: p and primorial*p + 1 are both primes.

Table of values

n a(n)
1 5
2 13
3 61
4 421
5 4621
6 150151
7 8678671
8 106696591
9 2454021571
10 71166625531
11 401120980261
12 170676977100631
13 2129751844690471
14 562558737261811291
15 11682905869181336791
16 97767475431570134191
17 9613801750771063195351
18 234576762718813941966541
19 55008250857561869391153631

List of values

[5, 13, 61, 421, 4621, 150151, 8678671, 106696591, 2454021571, 71166625531, 401120980261, 170676977100631, 2129751844690471, 562558737261811291, 11682905869181336791, 97767475431570134191, 9613801750771063195351, 234576762718813941966541, 55008250857561869391153631]

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

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