A290285 - cp's OEIS frontend

A290285 Determinant of circulant matrix of order 3 with entries in the first row (-1)^j * Sum_{k>=0} binomial(n,3*k+j), j=0,1,2.

n	a(n)
0	1
1	0
2	0
3	62
4	666
5	5292
6	39754
7	307062
8	2456244
9	19825910
10	159305994
11	1274445900
12	10184391946
13	81430393590
14	651443132340
15	5212260963062
16	41700950994186
17	333607607822412
18	2668815050206474
19	21350337149539062
20	170802697195263924
21	1366424509598012150

[1, 0, 0, 62, 666, 5292, 39754, 307062, 2456244, 19825910, 159305994, 1274445900, 10184391946, 81430393590, 651443132340, 5212260963062, 41700950994186, 333607607822412, 2668815050206474, 21350337149539062, 170802697195263924, 1366424509598012150]

cp's OEIS Frontend

A290285 Determinant of circulant matrix of order 3 with entries in the first row (-1)^j * Sum_{k>=0} binomial(n,3*k+j), j=0,1,2.

Table of values

List of values