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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.

A181667 Least integer m > 0 such that none of the first n primes divides any value of the polynomial x^2 + x + m.

Table of values

n a(n)
1 1
2 5
3 11
4 11
5 17
6 17
7 41
8 41
9 41
10 41
11 41
12 41
13 19421
14 19421
15 333491
16 601037
17 601037
18 5237651
19 9063641
20 12899891
21 24073871
22 24073871
23 28537121
24 67374467
25 67374467
26 67374467
27 67374467
28 146452961
29 13236860171
30 13236860171
31 17959429571
32 57391479317
33 57391479317

List of values

[1, 5, 11, 11, 17, 17, 41, 41, 41, 41, 41, 41, 19421, 19421, 333491, 601037, 601037, 5237651, 9063641, 12899891, 24073871, 24073871, 28537121, 67374467, 67374467, 67374467, 67374467, 146452961, 13236860171, 13236860171, 17959429571, 57391479317, 57391479317]

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

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