A110701 - cp's OEIS frontend

A110701 Friendly run sums: numbers S with two run sums (sum of positive integer runs) that share one common number, i.e., S = a + (a+1) + ... + b = b + (b+1) + ... + c with a < b < c.

n	a(n)
1	9
2	21
3	30
4	42
5	65
6	70
7	99
8	105
9	117
10	133
11	135
12	154
13	175
14	180
15	225
16	231
17	275
18	285
19	341
20	342
21	345
22	364
23	385
24	414
25	440
26	450
27	455
28	481
29	495
30	540
31	546
32	567
33	630
34	645
35	675
36	693
37	744
38	750
39	765
40	825
41	833
42	936
43	945
44	990
45	1035
46	1045
47	1140
48	1161
49	1170
50	1176
51	1178

[9, 21, 30, 42, 65, 70, 99, 105, 117, 133, 135, 154, 175, 180, 225, 231, 275, 285, 341, 342, 345, 364, 385, 414, 440, 450, 455, 481, 495, 540, 546, 567, 630, 645, 675, 693, 744, 750, 765, 825, 833, 936, 945, 990, 1035, 1045, 1140, 1161, 1170, 1176, 1178]

cp's OEIS Frontend

A110701 Friendly run sums: numbers S with two run sums (sum of positive integer runs) that share one common number, i.e., S = a + (a+1) + ... + b = b + (b+1) + ... + c with a < b < c.

Table of values

List of values