A243260 - OEIS

A243260 as a simple table

n	a(n)
1	81
2	90
3	99
4	171
5	180
6	189
7	261
8	270
9	279
10	351
11	360
12	369
13	441
14	450
15	459
16	531
17	540
18	549
19	621
20	630
21	639
22	711
23	720
24	729
25	801
26	810
27	819
28	1071
29	1080
30	1089
31	1161
32	1170
33	1179
34	1251
35	1260
36	1269
37	1341
38	1350
39	1359
40	1431
41	1440
42	1449
43	1521
44	1530
45	1539
46	1611
47	1620
48	1629

[81,90,99,171,180,189,261,270,279,351,360,369,441, 450,459,531,540,549,621,630,639,711,720,729,801, 810,819,1071,1080,1089,1161,1170,1179,1251,1260, 1269,1341,1350,1359,1431,1440,1449,1521,1530,1539, 1611,1620,1629]