A061833 - OEIS

A061833 as a simple table

n	a(n)
1	11
2	33
3	55
4	77
5	99
6	319
7	517
8	539
9	715
10	737
11	759
12	913
13	935
14	957
15	979
16	1111
17	1133
18	1155
19	1177
20	1199
21	1331
22	1353
23	1375
24	1397
25	1551
26	1573
27	1595
28	1771
29	1793
30	1991
31	3113
32	3135
33	3157
34	3179
35	3311
36	3333
37	3355
38	3377
39	3399
40	3531
41	3553
42	3575
43	3597
44	3751
45	3773
46	3795

[11,33,55,77,99,319,517,539,715,737,759,913,935, 957,979,1111,1133,1155,1177,1199,1331,1353,1375, 1397,1551,1573,1595,1771,1793,1991,3113,3135,3157, 3179,3311,3333,3355,3377,3399,3531,3553,3575,3597, 3751,3773,3795]