A026037 - cp's OEIS frontend

A026037 a(n) = dot_product(1,2,...,n)*(3,4,...,n,1,2).

n	a(n)
3	11
4	22
5	40
6	67
7	105
8	156
9	222
10	305
11	407
12	530
13	676
14	847
15	1045
16	1272
17	1530
18	1821
19	2147
20	2510
21	2912
22	3355
23	3841
24	4372
25	4950
26	5577
27	6255
28	6986
29	7772
30	8615
31	9517
32	10480
33	11506
34	12597
35	13755
36	14982
37	16280
38	17651
39	19097
40	20620
41	22222
42	23905
43	25671
44	27522
45	29460
46	31487
47	33605
48	35816
49	38122
50	40525
51	43027

[11, 22, 40, 67, 105, 156, 222, 305, 407, 530, 676, 847, 1045, 1272, 1530, 1821, 2147, 2510, 2912, 3355, 3841, 4372, 4950, 5577, 6255, 6986, 7772, 8615, 9517, 10480, 11506, 12597, 13755, 14982, 16280, 17651, 19097, 20620, 22222, 23905, 25671, 27522, 29460, 31487, 33605, 35816, 38122, 40525, 43027]

cp's OEIS Frontend

A026037 a(n) = dot_product(1,2,...,n)*(3,4,...,n,1,2).

Table of values

List of values