A044387 - OEIS

A044387 as a simple table

n	a(n)
1	55
2	155
3	255
4	355
5	455
6	550
7	655
8	755
9	855
10	955
11	1055
12	1155
13	1255
14	1355
15	1455
16	1550
17	1655
18	1755
19	1855
20	1955
21	2055
22	2155
23	2255
24	2355
25	2455
26	2550
27	2655
28	2755
29	2855
30	2955
31	3055
32	3155
33	3255
34	3355
35	3455
36	3550
37	3655
38	3755
39	3855

[55,155,255,355,455,550,655,755,855,955,1055,1155, 1255,1355,1455,1550,1655,1755,1855,1955,2055,2155, 2255,2355,2455,2550,2655,2755,2855,2955,3055,3155, 3255,3355,3455,3550,3655,3755,3855]