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.

A257711 Triangular numbers (A000217) that are the sum of seven consecutive triangular numbers.

Table of values

n a(n)
1 210
2 3486
3 51681
4 883785
5 13125126
6 224476266
7 3333728685
8 57016086141
9 846753959226
10 14481861401910
11 215072171913081
12 3678335779997361
13 54627484911961710
14 934282806257926146
15 13875166095466359621
16 237304154453733242085
17 3524237560763543380386

List of values

[210, 3486, 51681, 883785, 13125126, 224476266, 3333728685, 57016086141, 846753959226, 14481861401910, 215072171913081, 3678335779997361, 54627484911961710, 934282806257926146, 13875166095466359621, 237304154453733242085, 3524237560763543380386]

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

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