A354329 - cp's OEIS frontend

A354329 Triangular number nearest to the sum of the first n positive triangular numbers.

n	a(n)
0	0
1	1
2	3
3	10
4	21
5	36
6	55
7	78
8	120
9	171
10	210
11	276
12	351
13	465
14	561
15	666
16	820
17	990
18	1128
19	1326
20	1540
21	1770
22	2016
23	2278
24	2628
25	2926
26	3240
27	3655
28	4095
29	4465
30	4950
31	5460
32	5995
33	6555
34	7140
35	7750
36	8385
37	9180
38	9870
39	10731
40	11476
41	12403
42	13203
43	14196
44	15225
45	16290
46	17205

[0, 1, 3, 10, 21, 36, 55, 78, 120, 171, 210, 276, 351, 465, 561, 666, 820, 990, 1128, 1326, 1540, 1770, 2016, 2278, 2628, 2926, 3240, 3655, 4095, 4465, 4950, 5460, 5995, 6555, 7140, 7750, 8385, 9180, 9870, 10731, 11476, 12403, 13203, 14196, 15225, 16290, 17205]

cp's OEIS Frontend

A354329 Triangular number nearest to the sum of the first n positive triangular numbers.

Table of values

List of values