A298567 - cp's OEIS frontend

A298567 a(n) = Sum_{k=0..2n/3} C(n-k,2k-n)^2.

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	4
6	2
7	9
8	10
9	17
10	37
11	41
12	102
13	136
14	251
15	450
16	667
17	1325
18	2011
19	3658
20	6246
21	10293
22	18686
23	30461
24	54183
25	92169
26	157438
27	276414
28	466579
29	818256
30	1400509
31	2419379
32	4202829
33	7208342
34	12556360
35	21621891
36	37480728
37	64965461
38	112227269

[1, 0, 1, 1, 1, 4, 2, 9, 10, 17, 37, 41, 102, 136, 251, 450, 667, 1325, 2011, 3658, 6246, 10293, 18686, 30461, 54183, 92169, 157438, 276414, 466579, 818256, 1400509, 2419379, 4202829, 7208342, 12556360, 21621891, 37480728, 64965461, 112227269]

cp's OEIS Frontend

A298567 a(n) = Sum_{k=0..2n/3} C(n-k,2k-n)^2.

Table of values

List of values

cp's OEIS Frontend

A298567 a(n) = Sum_{k=0..2*n/3} C(n-k,2*k-n)^2.

Table of values

List of values

A298567 a(n) = Sum_{k=0..2n/3} C(n-k,2k-n)^2.