A071156 - cp's OEIS frontend

A071156 Apart from the initial term (0), lists all integers whose factorial expansion ends with 1 (i.e., are odd numbers), do not contain a digit zero and each successive digit to the left is at most one greater than the preceding digit.

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	11
6	15
7	17
8	23
9	33
10	35
11	39
12	41
13	47
14	57
15	59
16	63
17	65
18	71
19	87
20	89
21	95
22	119
23	153
24	155
25	159
26	161
27	167
28	177
29	179
30	183
31	185
32	191
33	207
34	209
35	215
36	239
37	273
38	275
39	279
40	281
41	287
42	297
43	299
44	303
45	305
46	311
47	327
48	329
49	335
50	359
51	417
52	419
53	423
54	425
55	431
56	447
57	449

[0, 1, 3, 5, 9, 11, 15, 17, 23, 33, 35, 39, 41, 47, 57, 59, 63, 65, 71, 87, 89, 95, 119, 153, 155, 159, 161, 167, 177, 179, 183, 185, 191, 207, 209, 215, 239, 273, 275, 279, 281, 287, 297, 299, 303, 305, 311, 327, 329, 335, 359, 417, 419, 423, 425, 431, 447, 449]

cp's OEIS Frontend

A071156 Apart from the initial term (0), lists all integers whose factorial expansion ends with 1 (i.e., are odd numbers), do not contain a digit zero and each successive digit to the left is at most one greater than the preceding digit.

Table of values

List of values

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	11
6	15
7	17
8	23
9	33
10	35
11	39
12	41
13	47
14	57
15	59
16	63
17	65
18	71
19	87
20	89
21	95
22	119
23	153
24	155
25	159
26	161
27	167
28	177
29	179
30	183
31	185
32	191
33	207
34	209
35	215
36	239
37	273
38	275
39	279
40	281
41	287
42	297
43	299
44	303
45	305
46	311
47	327
48	329
49	335
50	359
51	417
52	419
53	423
54	425
55	431
56	447
57	449

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	11
6	15
7	17
8	23
9	33
10	35
11	39
12	41
13	47
14	57
15	59
16	63
17	65
18	71
19	87
20	89
21	95
22	119
23	153
24	155
25	159
26	161
27	167
28	177
29	179
30	183
31	185
32	191
33	207
34	209
35	215
36	239
37	273
38	275
39	279
40	281
41	287
42	297
43	299
44	303
45	305
46	311
47	327
48	329
49	335
50	359
51	417
52	419
53	423
54	425
55	431
56	447
57	449

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	11
6	15
7	17
8	23
9	33
10	35
11	39
12	41
13	47
14	57
15	59
16	63
17	65
18	71
19	87
20	89
21	95
22	119
23	153
24	155
25	159
26	161
27	167
28	177
29	179
30	183
31	185
32	191
33	207
34	209
35	215
36	239
37	273
38	275
39	279
40	281
41	287
42	297
43	299
44	303
45	305
46	311
47	327
48	329
49	335
50	359
51	417
52	419
53	423
54	425
55	431
56	447
57	449