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.

A120808 Integers p such that x = p^3 is in A120806: x+d+1 is prime for all divisors d of x. All p greater than 1 are odd primes.

Table of values

n a(n)
1 1
2 5
3 71
4 303839
5 1030349
6 1356899
7 1437719
8 2248529
9 2416259
10 2576549
11 2797961
12 4007321
13 4353521
14 4875491
15 6137501
16 6611441
17 6698831
18 6904421
19 7821791
20 8078981
21 9221231
22 9311279
23 9500279
24 10157309
25 11251421
26 11879939
27 11957969
28 12040751
29 13906649
30 15299021
31 16043369

List of values

[1, 5, 71, 303839, 1030349, 1356899, 1437719, 2248529, 2416259, 2576549, 2797961, 4007321, 4353521, 4875491, 6137501, 6611441, 6698831, 6904421, 7821791, 8078981, 9221231, 9311279, 9500279, 10157309, 11251421, 11879939, 11957969, 12040751, 13906649, 15299021, 16043369]

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

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