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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.

A137690 Primes of the form A128646(k)-1 for some k (listed in A137689), where A128646 = denominators of partial sums of 1/(prime(i)-1).

Table of values

n a(n)
1 3
2 11
3 59
4 79
5 719
6 7919
7 55439
8 425039
9 5525519
10 19709529839
11 197095298399
12 999294451257532807016639
13 2823006824802530179822007999
14 2649530397357338361250749788962714016407928543999

List of values

[3, 11, 59, 79, 719, 7919, 55439, 425039, 5525519, 19709529839, 197095298399, 999294451257532807016639, 2823006824802530179822007999, 2649530397357338361250749788962714016407928543999]

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

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