A199981 - cp's OEIS frontend

A199981 Composite numbers whose multiplicative digital root is 2.

n	a(n)
1	12
2	21
3	26
4	34
5	62
6	112
7	121
8	126
9	134
10	143
11	162
12	216
13	232
14	261
15	278
16	279
17	287
18	297
19	299
20	314
21	322
22	341
23	369
24	371
25	376
26	396
27	398
28	413
29	447
30	469
31	474
32	496
33	612
34	621
35	637
36	639
37	649
38	666
39	693
40	694
41	713
42	728
43	729
44	731
45	736
46	744
47	763
48	782
49	792
50	872
51	893
52	927
53	936

[12, 21, 26, 34, 62, 112, 121, 126, 134, 143, 162, 216, 232, 261, 278, 279, 287, 297, 299, 314, 322, 341, 369, 371, 376, 396, 398, 413, 447, 469, 474, 496, 612, 621, 637, 639, 649, 666, 693, 694, 713, 728, 729, 731, 736, 744, 763, 782, 792, 872, 893, 927, 936]

cp's OEIS Frontend

A199981 Composite numbers whose multiplicative digital root is 2.

Table of values

List of values

n	a(n)
1	12
2	21
3	26
4	34
5	62
6	112
7	121
8	126
9	134
10	143
11	162
12	216
13	232
14	261
15	278
16	279
17	287
18	297
19	299
20	314
21	322
22	341
23	369
24	371
25	376
26	396
27	398
28	413
29	447
30	469
31	474
32	496
33	612
34	621
35	637
36	639
37	649
38	666
39	693
40	694
41	713
42	728
43	729
44	731
45	736
46	744
47	763
48	782
49	792
50	872
51	893
52	927
53	936

n	a(n)
1	12
2	21
3	26
4	34
5	62
6	112
7	121
8	126
9	134
10	143
11	162
12	216
13	232
14	261
15	278
16	279
17	287
18	297
19	299
20	314
21	322
22	341
23	369
24	371
25	376
26	396
27	398
28	413
29	447
30	469
31	474
32	496
33	612
34	621
35	637
36	639
37	649
38	666
39	693
40	694
41	713
42	728
43	729
44	731
45	736
46	744
47	763
48	782
49	792
50	872
51	893
52	927
53	936

n	a(n)
1	12
2	21
3	26
4	34
5	62
6	112
7	121
8	126
9	134
10	143
11	162
12	216
13	232
14	261
15	278
16	279
17	287
18	297
19	299
20	314
21	322
22	341
23	369
24	371
25	376
26	396
27	398
28	413
29	447
30	469
31	474
32	496
33	612
34	621
35	637
36	639
37	649
38	666
39	693
40	694
41	713
42	728
43	729
44	731
45	736
46	744
47	763
48	782
49	792
50	872
51	893
52	927
53	936