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.

A280113 Triangular numbers (A000217) that are also centered 10-gonal numbers (A062786).

Table of values

n a(n)
1 1
2 1711
3 2467531
4 3558178261
5 5130890585101
6 7398740665537651
7 10668978908814707911
8 15384660187770143270281
9 22184669321785637781037561
10 31990277777354701910112892951
11 46129958370276158368745010598051
12 66519367979660443013028395169496861

List of values

[1, 1711, 2467531, 3558178261, 5130890585101, 7398740665537651, 10668978908814707911, 15384660187770143270281, 22184669321785637781037561, 31990277777354701910112892951, 46129958370276158368745010598051, 66519367979660443013028395169496861]

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

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