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.

A309136 Nonnegative integers of the form x^2+15*x*y-y^2.

Table of values

n a(n)
1 0
2 1
3 4
4 9
5 15
6 16
7 25
8 27
9 33
10 36
11 37
12 45
13 49
14 51
15 53
16 55
17 57
18 60
19 64
20 75
21 81
22 85
23 95
24 99
25 100
26 108
27 121
28 125
29 129
30 132
31 135
32 144
33 148
34 153
35 165
36 169
37 171
38 173
39 180
40 183
41 187
42 193
43 196
44 204
45 209
46 212
47 213
48 215
49 220
50 225
51 228
52 229
53 240
54 241
55 243
56 249
57 255
58 256

List of values

[0, 1, 4, 9, 15, 16, 25, 27, 33, 36, 37, 45, 49, 51, 53, 55, 57, 60, 64, 75, 81, 85, 95, 99, 100, 108, 121, 125, 129, 132, 135, 144, 148, 153, 165, 169, 171, 173, 180, 183, 187, 193, 196, 204, 209, 212, 213, 215, 220, 225, 228, 229, 240, 241, 243, 249, 255, 256]

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

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