A026040 - cp's OEIS frontend

A026040 a(n) = dot_product(1,2,...,n)*(4,5,...,n,1,2,3).

n	a(n)
4	24
5	40
6	64
7	98
8	144
9	204
10	280
11	374
12	488
13	624
14	784
15	970
16	1184
17	1428
18	1704
19	2014
20	2360
21	2744
22	3168
23	3634
24	4144
25	4700
26	5304
27	5958
28	6664
29	7424
30	8240
31	9114
32	10048
33	11044
34	12104
35	13230
36	14424
37	15688
38	17024
39	18434
40	19920
41	21484
42	23128
43	24854
44	26664

[24, 40, 64, 98, 144, 204, 280, 374, 488, 624, 784, 970, 1184, 1428, 1704, 2014, 2360, 2744, 3168, 3634, 4144, 4700, 5304, 5958, 6664, 7424, 8240, 9114, 10048, 11044, 12104, 13230, 14424, 15688, 17024, 18434, 19920, 21484, 23128, 24854, 26664]

cp's OEIS Frontend

A026040 a(n) = dot_product(1,2,...,n)*(4,5,...,n,1,2,3).

Table of values

List of values