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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.

A216853 18k^2-12k-7 interleaved with 18k^2+6k+5 for k>=0.

Table of values

n a(n)
0 -7
1 5
2 -1
3 29
4 41
5 89
6 119
7 185
8 233
9 317
10 383
11 485
12 569
13 689
14 791
15 929
16 1049
17 1205
18 1343
19 1517
20 1673
21 1865
22 2039
23 2249
24 2441
25 2669
26 2879
27 3125
28 3353
29 3617
30 3863
31 4145
32 4409
33 4709
34 4991
35 5309
36 5609
37 5945
38 6263
39 6617
40 6953
41 7325
42 7679
43 8069
44 8441
45 8849

List of values

[-7, 5, -1, 29, 41, 89, 119, 185, 233, 317, 383, 485, 569, 689, 791, 929, 1049, 1205, 1343, 1517, 1673, 1865, 2039, 2249, 2441, 2669, 2879, 3125, 3353, 3617, 3863, 4145, 4409, 4709, 4991, 5309, 5609, 5945, 6263, 6617, 6953, 7325, 7679, 8069, 8441, 8849]

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

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