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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.

A135162 a(n) = 7^n - 5^n - 3^n + 2^n. Constants are the prime numbers in decreasing order.

Table of values

n a(n)
0 0
1 1
2 19
3 199
4 1711
5 13471
6 101359
7 743359
8 5367871
9 38381311
10 272651599
11 1928323519
12 13596619231
13 95666721151
14 672114790639
15 4717029615679
16 33080299697791
17 231867445524991
18 1624598513486479
19 11379820537307839
20 79696895380235551
21 558069016466824831
22 3907436831415107119

List of values

[0, 1, 19, 199, 1711, 13471, 101359, 743359, 5367871, 38381311, 272651599, 1928323519, 13596619231, 95666721151, 672114790639, 4717029615679, 33080299697791, 231867445524991, 1624598513486479, 11379820537307839, 79696895380235551, 558069016466824831, 3907436831415107119]

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

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