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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.

A344067 Expansion of Product_{k>=1} (1 + 8^(k-1)*x^k).

Table of values

n a(n)
0 1
1 1
2 8
3 72
4 576
5 5120
6 41472
7 364544
8 2949120
9 25952256
10 209977344
11 1830813696
12 14931722240
13 129251672064
14 1053340729344
15 9123584278528
16 74294344286208
17 639503450505216
18 5239722662166528
19 44846880273727488
20 367008185258606592
21 3144110674230116352
22 25718087147075928064

List of values

[1, 1, 8, 72, 576, 5120, 41472, 364544, 2949120, 25952256, 209977344, 1830813696, 14931722240, 129251672064, 1053340729344, 9123584278528, 74294344286208, 639503450505216, 5239722662166528, 44846880273727488, 367008185258606592, 3144110674230116352, 25718087147075928064]

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

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