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.

A238282 Number of (n+1)X(2+1) 0..3 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors.

Table of values

n a(n)
1 16
2 204
3 1844
4 13948
5 105862
6 850420
7 6953993
8 56279542
9 451637564
10 3624058880
11 29149448933
12 234656231134
13 1888292962943
14 15189590878387
15 122183775722351
16 982931386549726
17 7907698617955660
18 63616689428833346
19 511782089100478490

List of values

[16, 204, 1844, 13948, 105862, 850420, 6953993, 56279542, 451637564, 3624058880, 29149448933, 234656231134, 1888292962943, 15189590878387, 122183775722351, 982931386549726, 7907698617955660, 63616689428833346, 511782089100478490]

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

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