A144415 - OEIS

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A144415 as a simple table

n	a(n)
1	0
2	1
3	21
4	27
5	45
6	55
7	57
8	63
9	65
10	69
11	77
12	87
13	91
14	115
15	121
16	125
17	141
18	145
19	175
20	185
21	195
22	201
23	203
24	215
25	219
26	235
27	237
28	279
29	289
30	291
31	295
32	299
33	305
34	315
35	319
36	335
37	339
38	343
39	381
40	385
41	435
42	437
43	441
44	477
45	497
46	507
47	533
48	539
49	543
50	549
51	561
52	567
53	581
54	591
55	629
56	639
57	649

[0,1,21,27,45,55,57,63,65,69,77,87,91,115,121,125, 141,145,175,185,195,201,203,215,219,235,237,279, 289,291,295,299,305,315,319,335,339,343,381,385, 435,437,441,477,497,507,533,539,543,549,561,567, 581,591,629,639,649]

n	a(n)
1	0
2	1
3	21
4	27
5	45
6	55
7	57
8	63
9	65
10	69
11	77
12	87
13	91
14	115
15	121
16	125
17	141
18	145
19	175
20	185
21	195
22	201
23	203
24	215
25	219
26	235
27	237
28	279
29	289
30	291
31	295
32	299
33	305
34	315
35	319
36	335
37	339
38	343
39	381
40	385
41	435
42	437
43	441
44	477
45	497
46	507
47	533
48	539
49	543
50	549
51	561
52	567
53	581
54	591
55	629
56	639
57	649

n	a(n)
1	0
2	1
3	21
4	27
5	45
6	55
7	57
8	63
9	65
10	69
11	77
12	87
13	91
14	115
15	121
16	125
17	141
18	145
19	175
20	185
21	195
22	201
23	203
24	215
25	219
26	235
27	237
28	279
29	289
30	291
31	295
32	299
33	305
34	315
35	319
36	335
37	339
38	343
39	381
40	385
41	435
42	437
43	441
44	477
45	497
46	507
47	533
48	539
49	543
50	549
51	561
52	567
53	581
54	591
55	629
56	639
57	649

n	a(n)
1	0
2	1
3	21
4	27
5	45
6	55
7	57
8	63
9	65
10	69
11	77
12	87
13	91
14	115
15	121
16	125
17	141
18	145
19	175
20	185
21	195
22	201
23	203
24	215
25	219
26	235
27	237
28	279
29	289
30	291
31	295
32	299
33	305
34	315
35	319
36	335
37	339
38	343
39	381
40	385
41	435
42	437
43	441
44	477
45	497
46	507
47	533
48	539
49	543
50	549
51	561
52	567
53	581
54	591
55	629
56	639
57	649