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.

A144864 a(n) = (4*16^(n-1)-1)/3.

Table of values

n a(n)
1 1
2 21
3 341
4 5461
5 87381
6 1398101
7 22369621
8 357913941
9 5726623061
10 91625968981
11 1466015503701
12 23456248059221
13 375299968947541
14 6004799503160661
15 96076792050570581
16 1537228672809129301
17 24595658764946068821
18 393530540239137101141
19 6296488643826193618261
20 100743818301219097892181

List of values

[1, 21, 341, 5461, 87381, 1398101, 22369621, 357913941, 5726623061, 91625968981, 1466015503701, 23456248059221, 375299968947541, 6004799503160661, 96076792050570581, 1537228672809129301, 24595658764946068821, 393530540239137101141, 6296488643826193618261, 100743818301219097892181]

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

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