A185128 - cp's OEIS frontend

A185128 a(n) = larger member of n-th pair of distinct, positive, triangular numbers whose sum and difference are also triangular numbers.

n	a(n)
1	21
2	171
3	703
4	990
5	3741
6	4186
7	6786
8	8778
9	30628
10	38781
11	77028
12	188191
13	203203
14	219453
15	318801
16	359128
17	416328
18	678030
19	763230
20	928203
21	1023165
22	1342341
23	1505980
24	1983036
25	2114596
26	2185095
27	2349028
28	2795430
29	3219453
30	3744216
31	4928230
32	6049981
33	7036876
34	7478778

[21, 171, 703, 990, 3741, 4186, 6786, 8778, 30628, 38781, 77028, 188191, 203203, 219453, 318801, 359128, 416328, 678030, 763230, 928203, 1023165, 1342341, 1505980, 1983036, 2114596, 2185095, 2349028, 2795430, 3219453, 3744216, 4928230, 6049981, 7036876, 7478778]

cp's OEIS Frontend

A185128 a(n) = larger member of n-th pair of distinct, positive, triangular numbers whose sum and difference are also triangular numbers.

Table of values

List of values