A261176 - cp's OEIS frontend

A261176 Minimum value of (1/2)Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.

n	a(n)
1	0
2	9
3	126
4	802
5	3158
6	10040
7	25464
8	58837
9	123422
10	238203
11	429467
12	733923
13	1200319
14	1912928
15	2945116
16	4369570
17	6338678
18	9053512
19	12622814
20	17359779
21	23503546
22	31347788
23	41161317

[0, 9, 126, 802, 3158, 10040, 25464, 58837, 123422, 238203, 429467, 733923, 1200319, 1912928, 2945116, 4369570, 6338678, 9053512, 12622814, 17359779, 23503546, 31347788, 41161317]

cp's OEIS Frontend

A261176 Minimum value of (1/2)Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.

Table of values

List of values

cp's OEIS Frontend

A261176 Minimum value of (1/2)*Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) * ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.

Table of values

List of values

A261176 Minimum value of (1/2)Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.