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.

A248997 Number of length n+4 0..4 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.

Table of values

n a(n)
1 2540
2 10360
3 42308
4 172888
5 706704
6 2888944
7 11810564
8 48286456
9 197422012
10 807188768
11 3300330556
12 13494048552
13 55173290154
14 225588339824
15 922369809354
16 3771323457556
17 15419939994758
18 63048058448056
19 257786893864722

List of values

[2540, 10360, 42308, 172888, 706704, 2888944, 11810564, 48286456, 197422012, 807188768, 3300330556, 13494048552, 55173290154, 225588339824, 922369809354, 3771323457556, 15419939994758, 63048058448056, 257786893864722]

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

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