A070152 - cp's OEIS frontend

A070152 Take pairs (x,y) with Sum_{j = x..y} j = concatenation of x and y. Sort pairs on y then x. This sequence gives x of each pair.

n	a(n)
1	1
2	2
3	4
4	13
5	18
6	33
7	35
8	7
9	78
10	133
11	178
12	228
13	273
14	388
15	710
16	1333
17	1701
18	1778
19	2737
20	3273
21	3563
22	3087
23	3478
24	12488
25	13333
26	14208
27	17778
28	31463
29	36993
30	5338
31	7063
32	9063
33	12643
34	15238
35	17147
36	22448
37	23788
38	27313
39	29058
40	34488
41	36763
42	38788
43	43273
44	50813
45	53578

[1, 2, 4, 13, 18, 33, 35, 7, 78, 133, 178, 228, 273, 388, 710, 1333, 1701, 1778, 2737, 3273, 3563, 3087, 3478, 12488, 13333, 14208, 17778, 31463, 36993, 5338, 7063, 9063, 12643, 15238, 17147, 22448, 23788, 27313, 29058, 34488, 36763, 38788, 43273, 50813, 53578]

cp's OEIS Frontend

A070152 Take pairs (x,y) with Sum_{j = x..y} j = concatenation of x and y. Sort pairs on y then x. This sequence gives x of each pair.

Table of values

List of values