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.

A138278 Sequence identical to its third differences in absolute values.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 16
5 24
6 40
7 80
8 120
9 200
10 400
11 600
12 1000
13 2000
14 3000
15 5000
16 10000
17 15000
18 25000
19 50000
20 75000
21 125000
22 250000
23 375000
24 625000
25 1250000
26 1875000
27 3125000
28 6250000
29 9375000
30 15625000
31 31250000
32 46875000
33 78125000
34 156250000
35 234375000
36 390625000

List of values

[1, 2, 4, 8, 16, 24, 40, 80, 120, 200, 400, 600, 1000, 2000, 3000, 5000, 10000, 15000, 25000, 50000, 75000, 125000, 250000, 375000, 625000, 1250000, 1875000, 3125000, 6250000, 9375000, 15625000, 31250000, 46875000, 78125000, 156250000, 234375000, 390625000]

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

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