A292310 - cp's OEIS frontend

A292310 Triangular numbers that are equidistant from two other triangular numbers.

n	a(n)
1	3
2	21
3	28
4	36
5	78
6	105
7	153
8	171
9	190
10	210
11	253
12	325
13	351
14	378
15	465
16	528
17	666
18	703
19	903
20	946
21	990
22	1035
23	1128
24	1176
25	1275
26	1378
27	1485
28	1540
29	1596
30	1653
31	1711
32	1770
33	1891
34	1953
35	2278
36	2346
37	2556
38	2628
39	2775
40	2926
41	3003
42	3081
43	3160
44	3403
45	3570
46	3741
47	3828
48	4095
49	4186
50	4278
51	4371
52	4656

[3, 21, 28, 36, 78, 105, 153, 171, 190, 210, 253, 325, 351, 378, 465, 528, 666, 703, 903, 946, 990, 1035, 1128, 1176, 1275, 1378, 1485, 1540, 1596, 1653, 1711, 1770, 1891, 1953, 2278, 2346, 2556, 2628, 2775, 2926, 3003, 3081, 3160, 3403, 3570, 3741, 3828, 4095, 4186, 4278, 4371, 4656]

cp's OEIS Frontend

A292310 Triangular numbers that are equidistant from two other triangular numbers.

Table of values

List of values