A240285 - cp's OEIS frontend

A240285 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

n	a(n)
1	2
2	8
3	19
4	76
5	181
6	741
7	1779
8	7308
9	17561
10	72140
11	173343
12	712043
13	1710905
14	7027848
15	16886555
16	69364556
17	166669597
18	684625413
19	1645022411
20	6757226212
21	16236307329
22	66693560300
23	160251722711
24	658262849419
25	1581678277825
26	6497028751792

[2, 8, 19, 76, 181, 741, 1779, 7308, 17561, 72140, 173343, 712043, 1710905, 7027848, 16886555, 69364556, 166669597, 684625413, 1645022411, 6757226212, 16236307329, 66693560300, 160251722711, 658262849419, 1581678277825, 6497028751792]

cp's OEIS Frontend

A240285 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

List of values