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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.

A022801 n-th Lucas number (A000204(n)) + n-th non-Lucas number (A090946(n+1)).

Table of values

n a(n)
1 3
2 8
3 10
4 15
5 20
6 28
7 41
8 60
9 90
10 138
11 215
12 339
13 540
14 863
15 1385
16 2229
17 3594
18 5802
19 9374
20 15153
21 24503
22 39631
23 64109
24 103713
25 167793
26 271476
27 439238
28 710682
29 1149887
30 1860535
31 3010387
32 4870886
33 7881236
34 12752084
35 20633281
36 33385325
37 54018565

List of values

[3, 8, 10, 15, 20, 28, 41, 60, 90, 138, 215, 339, 540, 863, 1385, 2229, 3594, 5802, 9374, 15153, 24503, 39631, 64109, 103713, 167793, 271476, 439238, 710682, 1149887, 1860535, 3010387, 4870886, 7881236, 12752084, 20633281, 33385325, 54018565]

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

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