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.

A218523 Number of 2Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 2Xn array.

Table of values

n a(n)
1 16
2 36
3 286
4 1348
5 7902
6 42812
7 242438
8 1349524
9 7567448
10 42328892
11 237017542
12 1326679924
13 7427188036
14 41577119948
15 232754004212
16 1302972323234
17 7294158727224
18 40833303099488
19 228588363496794
20 1279657095800040

List of values

[16, 36, 286, 1348, 7902, 42812, 242438, 1349524, 7567448, 42328892, 237017542, 1326679924, 7427188036, 41577119948, 232754004212, 1302972323234, 7294158727224, 40833303099488, 228588363496794, 1279657095800040]

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

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