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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.

A076883 Let u(0)=1, u(n) = 5/2 * floor(u(n-1)); then a(n) = (2/5)*u(n).

Table of values

n a(n)
1 1
2 2
3 5
4 12
5 30
6 75
7 187
8 467
9 1167
10 2917
11 7292
12 18230
13 45575
14 113937
15 284842
16 712105
17 1780262
18 4450655
19 11126637
20 27816592
21 69541480
22 173853700
23 434634250
24 1086585625
25 2716464062
26 6791160155
27 16977900387
28 42444750967
29 106111877417

List of values

[1, 2, 5, 12, 30, 75, 187, 467, 1167, 2917, 7292, 18230, 45575, 113937, 284842, 712105, 1780262, 4450655, 11126637, 27816592, 69541480, 173853700, 434634250, 1086585625, 2716464062, 6791160155, 16977900387, 42444750967, 106111877417]

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

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