A096031 - cp's OEIS frontend

A096031 Take pairs (a, b), sorted on a, such that T(a)+T(b)=concatenation of a and b, where T(k) is the k-th triangular number A000217(k). Sequence gives values of a.

n	a(n)
1	19
2	90
3	120
4	150
5	244
6	585
7	700
8	769
9	1414
10	1474
11	1909
12	2829
13	3030
14	4774
15	6154
16	6324
17	7804
18	8274
19	8455
20	10614
21	11544
22	11725
23	12195
24	13675
25	13845
26	15094
27	15225
28	16969
29	17170
30	18525
31	19230
32	19299
33	19755
34	19849
35	19879
36	47170
37	55165
38	90844
39	109155

[19, 90, 120, 150, 244, 585, 700, 769, 1414, 1474, 1909, 2829, 3030, 4774, 6154, 6324, 7804, 8274, 8455, 10614, 11544, 11725, 12195, 13675, 13845, 15094, 15225, 16969, 17170, 18525, 19230, 19299, 19755, 19849, 19879, 47170, 55165, 90844, 109155]

cp's OEIS Frontend

A096031 Take pairs (a, b), sorted on a, such that T(a)+T(b)=concatenation of a and b, where T(k) is the k-th triangular number A000217(k). Sequence gives values of a.

Table of values

List of values