A281600 - cp's OEIS frontend

A281600 Number of n X 3 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	4
2	29
3	209
4	1623
5	12413
6	95623
7	736757
8	5678559
9	43771933
10	337417047
11	2601018757
12	20050333455
13	154561132461
14	1191459205767
15	9184555212821
16	70800627012031
17	545778076046781
18	4207218532446903
19	32432024283432101
20	250007502993994607

[4, 29, 209, 1623, 12413, 95623, 736757, 5678559, 43771933, 337417047, 2601018757, 20050333455, 154561132461, 1191459205767, 9184555212821, 70800627012031, 545778076046781, 4207218532446903, 32432024283432101, 250007502993994607]

cp's OEIS Frontend

A281600 Number of n X 3 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

List of values