A372416 - cp's OEIS frontend

A372416 Coefficient of x^n in the expansion of ( (1-x+x^3) / (1-x) )^(2*n).

n	a(n)
0	1
1	0
2	0
3	6
4	8
5	10
6	78
7	196
8	376
9	1446
10	4390
11	10648
12	32822
13	101426
14	276976
15	808666
16	2449528
17	7046942
18	20491458
19	61124482
20	179376718
21	525065722
22	1556298700
23	4598892274
24	13546834582
25	40109057710
26	118836735758
27	351539306142
28	1041872654824
29	3091535558296

[1, 0, 0, 6, 8, 10, 78, 196, 376, 1446, 4390, 10648, 32822, 101426, 276976, 808666, 2449528, 7046942, 20491458, 61124482, 179376718, 525065722, 1556298700, 4598892274, 13546834582, 40109057710, 118836735758, 351539306142, 1041872654824, 3091535558296]

cp's OEIS Frontend

A372416 Coefficient of x^n in the expansion of ( (1-x+x^3) / (1-x) )^(2*n).

Table of values

List of values