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.

A212153 Approximations up to 7^n for one of the three 7-adic integers (-1)^(1/3).

Table of values

n a(n)
0 0
1 5
2 19
3 19
4 1048
5 15454
6 82682
7 82682
8 3376854
9 14906456
10 135967277
11 700917775
12 4655571261
13 18496858462
14 406052900090
15 3797168264335
16 22787414304107
17 188952067152112
18 654213095126526
19 654213095126526
20 57648689021992241
21 456610020510052246
22 2132247612759904267

List of values

[0, 5, 19, 19, 1048, 15454, 82682, 82682, 3376854, 14906456, 135967277, 700917775, 4655571261, 18496858462, 406052900090, 3797168264335, 22787414304107, 188952067152112, 654213095126526, 654213095126526, 57648689021992241, 456610020510052246, 2132247612759904267]

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

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