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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.

A383039 Sum of the legs of the unique primitive Pythagorean triple (a,b,c) such that (a-b+c)/2 = A000032(n) and its long leg and hypotenuse are consecutive natural numbers.

Table of values

n a(n)
0 7
1 1
2 17
3 31
4 97
5 241
6 647
7 1681
8 4417
9 11551
10 30257
11 79201
12 207367
13 542881
14 1421297
15 3720991
16 9741697
17 25504081
18 66770567
19 174807601
20 457652257
21 1198149151
22 3136795217
23 8212236481
24 21499914247
25 56287506241
26 147362604497
27 385800307231
28 1010038317217
29 2644314644401
30 6922905616007

List of values

[7, 1, 17, 31, 97, 241, 647, 1681, 4417, 11551, 30257, 79201, 207367, 542881, 1421297, 3720991, 9741697, 25504081, 66770567, 174807601, 457652257, 1198149151, 3136795217, 8212236481, 21499914247, 56287506241, 147362604497, 385800307231, 1010038317217, 2644314644401, 6922905616007]

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

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