A302940 - cp's OEIS frontend

A302940 Lexicographically first sequence of distinct terms such that the product of any two terms is not a term of the sequence, and the product of any two digits is not a digit of the sequence.

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	44
8	47
9	49
10	54
11	55
12	57
13	59
14	74
15	75
16	77
17	79
18	95
19	97
20	99
21	444
22	445
23	447
24	449
25	454
26	455
27	457
28	459
29	474
30	477
31	479
32	494
33	497
34	499
35	544
36	545
37	547
38	549
39	554
40	555
41	557
42	559
43	574
44	575
45	577
46	579
47	594
48	595
49	597
50	599
51	744
52	745
53	747
54	749
55	754
56	755
57	757
58	759
59	774
60	775
61	777
62	779
63	794
64	795
65	797
66	799

[2, 3, 4, 5, 7, 9, 44, 47, 49, 54, 55, 57, 59, 74, 75, 77, 79, 95, 97, 99, 444, 445, 447, 449, 454, 455, 457, 459, 474, 477, 479, 494, 497, 499, 544, 545, 547, 549, 554, 555, 557, 559, 574, 575, 577, 579, 594, 595, 597, 599, 744, 745, 747, 749, 754, 755, 757, 759, 774, 775, 777, 779, 794, 795, 797, 799]

cp's OEIS Frontend

A302940 Lexicographically first sequence of distinct terms such that the product of any two terms is not a term of the sequence, and the product of any two digits is not a digit of the sequence.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	44
8	47
9	49
10	54
11	55
12	57
13	59
14	74
15	75
16	77
17	79
18	95
19	97
20	99
21	444
22	445
23	447
24	449
25	454
26	455
27	457
28	459
29	474
30	477
31	479
32	494
33	497
34	499
35	544
36	545
37	547
38	549
39	554
40	555
41	557
42	559
43	574
44	575
45	577
46	579
47	594
48	595
49	597
50	599
51	744
52	745
53	747
54	749
55	754
56	755
57	757
58	759
59	774
60	775
61	777
62	779
63	794
64	795
65	797
66	799

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	44
8	47
9	49
10	54
11	55
12	57
13	59
14	74
15	75
16	77
17	79
18	95
19	97
20	99
21	444
22	445
23	447
24	449
25	454
26	455
27	457
28	459
29	474
30	477
31	479
32	494
33	497
34	499
35	544
36	545
37	547
38	549
39	554
40	555
41	557
42	559
43	574
44	575
45	577
46	579
47	594
48	595
49	597
50	599
51	744
52	745
53	747
54	749
55	754
56	755
57	757
58	759
59	774
60	775
61	777
62	779
63	794
64	795
65	797
66	799

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	44
8	47
9	49
10	54
11	55
12	57
13	59
14	74
15	75
16	77
17	79
18	95
19	97
20	99
21	444
22	445
23	447
24	449
25	454
26	455
27	457
28	459
29	474
30	477
31	479
32	494
33	497
34	499
35	544
36	545
37	547
38	549
39	554
40	555
41	557
42	559
43	574
44	575
45	577
46	579
47	594
48	595
49	597
50	599
51	744
52	745
53	747
54	749
55	754
56	755
57	757
58	759
59	774
60	775
61	777
62	779
63	794
64	795
65	797
66	799