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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.

A132920 a(n) = n*Fibonacci(n) + binomial(n, 2).

Table of values

n a(n)
1 1
2 3
3 9
4 18
5 35
6 63
7 112
8 196
9 342
10 595
11 1034
12 1794
13 3107
14 5369
15 9255
16 15912
17 27285
18 46665
19 79610
20 135490
21 230076
22 389873
23 659364
24 1113108
25 1875925
26 3156543
27 5303637
28 8899086
29 14913047
30 24961635
31 41734804
32 69706384
33 116311602
34 193898719
35 322961870
36 537493302

List of values

[1, 3, 9, 18, 35, 63, 112, 196, 342, 595, 1034, 1794, 3107, 5369, 9255, 15912, 27285, 46665, 79610, 135490, 230076, 389873, 659364, 1113108, 1875925, 3156543, 5303637, 8899086, 14913047, 24961635, 41734804, 69706384, 116311602, 193898719, 322961870, 537493302]

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

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