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.

A006244 Hexagonal numbers (A000384) which are also centered hexagonal numbers (A003215).

Table of values

n a(n)
1 1
2 91
3 8911
4 873181
5 85562821
6 8384283271
7 821574197731
8 80505887094361
9 7888755361049641
10 773017519495770451
11 75747828155224454551
12 7422514141692500775541
13 727330638057709851548461
14 71270980015513872950973631
15 6983828710882301839343867371
16 684343942686450066382748028721

List of values

[1, 91, 8911, 873181, 85562821, 8384283271, 821574197731, 80505887094361, 7888755361049641, 773017519495770451, 75747828155224454551, 7422514141692500775541, 727330638057709851548461, 71270980015513872950973631, 6983828710882301839343867371, 684343942686450066382748028721]

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

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