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.

A368052 The degree of polynomials related to Somos-4 sequences. Also for n > 2 the degree of the (n-3)-th involution in a family of involutions in the Cremona group of rank 3 defined by a Somos-4 sequence.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 2
5 3
6 5
7 8
8 10
9 14
10 18
11 22
12 28
13 33
14 39
15 46
16 52
17 60
18 68
19 76
20 86
21 95
22 105
23 116
24 126
25 138
26 150
27 162
28 176
29 189
30 203
31 218
32 232
33 248
34 264
35 280
36 298
37 315
38 333
39 352
40 370
41 390
42 410
43 430
44 452
45 473
46 495
47 518
48 540
49 564
50 588
51 612
52 638
53 663
54 689
55 716
56 742
57 770

List of values

[0, 0, 0, 0, 2, 3, 5, 8, 10, 14, 18, 22, 28, 33, 39, 46, 52, 60, 68, 76, 86, 95, 105, 116, 126, 138, 150, 162, 176, 189, 203, 218, 232, 248, 264, 280, 298, 315, 333, 352, 370, 390, 410, 430, 452, 473, 495, 518, 540, 564, 588, 612, 638, 663, 689, 716, 742, 770]

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

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