A237569 - cp's OEIS frontend

A237569 Number of (n+1)X(1+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

n	a(n)
1	256
2	1876
3	13924
4	103264
5	769680
6	5705156
7	42501300
8	315065200
9	2347267424
10	17400203636
11	129631996580
12	960959725312
13	7159191300272
14	53070925060004
15	395380448791316
16	2930946979641872
17	21835672557183872
18	161867373265982548

[256, 1876, 13924, 103264, 769680, 5705156, 42501300, 315065200, 2347267424, 17400203636, 129631996580, 960959725312, 7159191300272, 53070925060004, 395380448791316, 2930946979641872, 21835672557183872, 161867373265982548]

cp's OEIS Frontend

A237569 Number of (n+1)X(1+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

Table of values

List of values