A220801 - cp's OEIS frontend

A220801 Sum of neighbor maps: number of nX2 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal and vertical neighbors in a random 0..3 nX2 array.

n	a(n)
1	2
2	16
3	48
4	256
5	928
6	4096
7	15820
8	65536
9	259584
10	1048576
11	4182016
12	16777216
13	67051520
14	268435456
15	1073476576
16	4294967296
17	17178689536
18	68719476736
19	274872664064
20	1099511627776
21	4398023442432
22	17592186044416
23	70368643424320

[2, 16, 48, 256, 928, 4096, 15820, 65536, 259584, 1048576, 4182016, 16777216, 67051520, 268435456, 1073476576, 4294967296, 17178689536, 68719476736, 274872664064, 1099511627776, 4398023442432, 17592186044416, 70368643424320]

cp's OEIS Frontend

A220801 Sum of neighbor maps: number of nX2 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal and vertical neighbors in a random 0..3 nX2 array.

Table of values

List of values