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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.

A261806 a(n) = Sum from "least x such that prime(x) has n digits" to "the number of primes with n digits" of the difference between prime(k) and k.

Table of values

n a(n)
1 7
2 474
3 42311
4 3558614
5 300169143
6 25814402881
7 2261786350515
8 200839375217041
9 18042305628036066
10 1636922369808190765
11 149754058084293423958
12 13797718194530764325852
13 1279006935910516590640721
14 119184789951429474863414128
15 11157358746329927416919291238
16 1048709967153503078344158238498

List of values

[7, 474, 42311, 3558614, 300169143, 25814402881, 2261786350515, 200839375217041, 18042305628036066, 1636922369808190765, 149754058084293423958, 13797718194530764325852, 1279006935910516590640721, 119184789951429474863414128, 11157358746329927416919291238, 1048709967153503078344158238498]

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

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