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.

A097579 Triangular numbers k such that 2*k-1 is also a triangular number.

Table of values

n a(n)
1 1
2 28
3 946
4 32131
5 1091503
6 37078966
7 1259593336
8 42789094453
9 1453569618061
10 49378577919616
11 1677418079648878
12 56982836130142231
13 1935739010345186971
14 65758143515606214778
15 2233841140520266115476
16 75884840634173441711401

List of values

[1, 28, 946, 32131, 1091503, 37078966, 1259593336, 42789094453, 1453569618061, 49378577919616, 1677418079648878, 56982836130142231, 1935739010345186971, 65758143515606214778, 2233841140520266115476, 75884840634173441711401]

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

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