cp's OEIS Frontend

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.

A094767 Square spiral of sums of selected preceding terms, starting at 1 (a spiral Fibonacci-like sequence).

Table of values

n a(n)
1 1
2 1
3 2
4 4
5 8
6 13
7 26
8 40
9 81
10 123
11 205
12 412
13 620
14 1034
15 2072
16 3120
17 5204
18 8332
19 16677
20 25056
21 41772
22 66854
23 133748
24 200749
25 334741
26 535694
27 870558
28 1741321
29 2612619
30 4355177
31 6968828
32 11324625
33 22650284
34 33978635
35 56635145
36 90624176
37 147267645

List of values

[1, 1, 2, 4, 8, 13, 26, 40, 81, 123, 205, 412, 620, 1034, 2072, 3120, 5204, 8332, 16677, 25056, 41772, 66854, 133748, 200749, 334741, 535694, 870558, 1741321, 2612619, 4355177, 6968828, 11324625, 22650284, 33978635, 56635145, 90624176, 147267645]

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

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