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.

A265374 Number of 4Xn arrays containing n copies of 0..4-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0.

Table of values

n a(n)
1 1
2 10
3 32
4 236
5 1238
6 7968
7 49214
8 324152
9 2143190
10 14504394
11 99426578
12 689852636
13 4833447174
14 34171252034
15 243350167280
16 1744518978956
17 12578806997916
18 91164415152504
19 663757426934364
20 4852711337116032
21 35610643603759148

List of values

[1, 10, 32, 236, 1238, 7968, 49214, 324152, 2143190, 14504394, 99426578, 689852636, 4833447174, 34171252034, 243350167280, 1744518978956, 12578806997916, 91164415152504, 663757426934364, 4852711337116032, 35610643603759148]

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

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