A281381 - cp's OEIS frontend

A281381 a(n) = n(n + 1)(4*n + 5)/2.

n	a(n)
0	0
1	9
2	39
3	102
4	210
5	375
6	609
7	924
8	1332
9	1845
10	2475
11	3234
12	4134
13	5187
14	6405
15	7800
16	9384
17	11169
18	13167
19	15390
20	17850
21	20559
22	23529
23	26772
24	30300
25	34125
26	38259
27	42714
28	47502
29	52635
30	58125
31	63984
32	70224
33	76857
34	83895
35	91350
36	99234
37	107559
38	116337
39	125580
40	135300
41	145509
42	156219
43	167442
44	179190
45	191475

[0, 9, 39, 102, 210, 375, 609, 924, 1332, 1845, 2475, 3234, 4134, 5187, 6405, 7800, 9384, 11169, 13167, 15390, 17850, 20559, 23529, 26772, 30300, 34125, 38259, 42714, 47502, 52635, 58125, 63984, 70224, 76857, 83895, 91350, 99234, 107559, 116337, 125580, 135300, 145509, 156219, 167442, 179190, 191475]

cp's OEIS Frontend

A281381 a(n) = n(n + 1)(4*n + 5)/2.

Table of values

List of values

cp's OEIS Frontend

A281381 a(n) = n*(n + 1)*(4*n + 5)/2.

Table of values

List of values

A281381 a(n) = n(n + 1)(4*n + 5)/2.