A178946 - cp's OEIS frontend

A178946 a(n) = n(n+1)(2n+1)/6 - nfloor(n/2).

n	a(n)
1	1
2	3
3	11
4	22
5	45
6	73
7	119
8	172
9	249
10	335
11	451
12	578
13	741
14	917
15	1135
16	1368
17	1649
18	1947
19	2299
20	2670
21	3101
22	3553
23	4071
24	4612
25	5225
26	5863
27	6579
28	7322
29	8149
30	9005
31	9951
32	10928
33	12001
34	13107
35	14315
36	15558
37	16909
38	18297
39	19799
40	21340
41	23001

[1, 3, 11, 22, 45, 73, 119, 172, 249, 335, 451, 578, 741, 917, 1135, 1368, 1649, 1947, 2299, 2670, 3101, 3553, 4071, 4612, 5225, 5863, 6579, 7322, 8149, 9005, 9951, 10928, 12001, 13107, 14315, 15558, 16909, 18297, 19799, 21340, 23001]

cp's OEIS Frontend

A178946 a(n) = n(n+1)(2n+1)/6 - nfloor(n/2).

Table of values

List of values

cp's OEIS Frontend

A178946 a(n) = n*(n+1)*(2*n+1)/6 - n*floor(n/2).

Table of values

List of values

A178946 a(n) = n(n+1)(2n+1)/6 - nfloor(n/2).