A137461 - OEIS

A137461 as a simple table

n	a(n)
1	4
2	7
3	10
4	15
5	21
6	25
7	39
8	52
9	87
10	120
11	129
12	139
13	189
14	202
15	259
16	286
17	316
18	376
19	391
20	466
21	472
22	486
23	510
24	532
25	574
26	631
27	642
28	684
29	685
30	739
31	750
32	769
33	882
34	972
35	987
36	991
37	1029
38	1074
39	1092
40	1201
41	1212
42	1231
43	1320
44	1326
45	1456
46	1506
47	1522
48	1524
49	1539
50	1575
51	1632

[4,7,10,15,21,25,39,52,87,120,129,139,189,202,259, 286,316,376,391,466,472,486,510,532,574,631,642, 684,685,739,750,769,882,972,987,991,1029,1074, 1092,1201,1212,1231,1320,1326,1456,1506,1522,1524, 1539,1575,1632]