A349729 - cp's OEIS frontend

A349729 Numbers k >= 1 such that A018804(k) + A000203(k) is a triangular number.

n	a(n)
1	2
2	4
3	5
4	7
5	10
6	33
7	34
8	38
9	49
10	60
11	92
12	116
13	132
14	155
15	159
16	220
17	268
18	285
19	315
20	360
21	437
22	472
23	579
24	602
25	664
26	722
27	835
28	1254
29	1269
30	1320
31	1336
32	1348
33	1436
34	1786
35	1797
36	1890
37	1996
38	2016
39	2024
40	2050
41	2115
42	2163
43	2344
44	2427
45	2455
46	2595
47	2710
48	2961
49	3497

[2, 4, 5, 7, 10, 33, 34, 38, 49, 60, 92, 116, 132, 155, 159, 220, 268, 285, 315, 360, 437, 472, 579, 602, 664, 722, 835, 1254, 1269, 1320, 1336, 1348, 1436, 1786, 1797, 1890, 1996, 2016, 2024, 2050, 2115, 2163, 2344, 2427, 2455, 2595, 2710, 2961, 3497]

cp's OEIS Frontend

A349729 Numbers k >= 1 such that A018804(k) + A000203(k) is a triangular number.

Table of values

List of values