A045520 - cp's OEIS frontend

A045520 Numbers k such that k! has initial digit '1'.

n	a(n)
1	0
2	1
3	5
4	15
5	19
6	22
7	25
8	27
9	35
10	37
11	42
12	45
13	48
14	51
15	55
16	59
17	63
18	64
19	69
20	70
21	76
22	77
23	78
24	88
25	89
26	90
27	91
28	92
29	93
30	94
31	95
32	104
33	105
34	106
35	107
36	108
37	109
38	110
39	111
40	112
41	123
42	124
43	125
44	132
45	133
46	134
47	140
48	141
49	146
50	147
51	152
52	157
53	158
54	162
55	167
56	171
57	175
58	176
59	179
60	183

[0, 1, 5, 15, 19, 22, 25, 27, 35, 37, 42, 45, 48, 51, 55, 59, 63, 64, 69, 70, 76, 77, 78, 88, 89, 90, 91, 92, 93, 94, 95, 104, 105, 106, 107, 108, 109, 110, 111, 112, 123, 124, 125, 132, 133, 134, 140, 141, 146, 147, 152, 157, 158, 162, 167, 171, 175, 176, 179, 183]

cp's OEIS Frontend

A045520 Numbers k such that k! has initial digit '1'.

Table of values

List of values

n	a(n)
1	0
2	1
3	5
4	15
5	19
6	22
7	25
8	27
9	35
10	37
11	42
12	45
13	48
14	51
15	55
16	59
17	63
18	64
19	69
20	70
21	76
22	77
23	78
24	88
25	89
26	90
27	91
28	92
29	93
30	94
31	95
32	104
33	105
34	106
35	107
36	108
37	109
38	110
39	111
40	112
41	123
42	124
43	125
44	132
45	133
46	134
47	140
48	141
49	146
50	147
51	152
52	157
53	158
54	162
55	167
56	171
57	175
58	176
59	179
60	183

n	a(n)
1	0
2	1
3	5
4	15
5	19
6	22
7	25
8	27
9	35
10	37
11	42
12	45
13	48
14	51
15	55
16	59
17	63
18	64
19	69
20	70
21	76
22	77
23	78
24	88
25	89
26	90
27	91
28	92
29	93
30	94
31	95
32	104
33	105
34	106
35	107
36	108
37	109
38	110
39	111
40	112
41	123
42	124
43	125
44	132
45	133
46	134
47	140
48	141
49	146
50	147
51	152
52	157
53	158
54	162
55	167
56	171
57	175
58	176
59	179
60	183

n	a(n)
1	0
2	1
3	5
4	15
5	19
6	22
7	25
8	27
9	35
10	37
11	42
12	45
13	48
14	51
15	55
16	59
17	63
18	64
19	69
20	70
21	76
22	77
23	78
24	88
25	89
26	90
27	91
28	92
29	93
30	94
31	95
32	104
33	105
34	106
35	107
36	108
37	109
38	110
39	111
40	112
41	123
42	124
43	125
44	132
45	133
46	134
47	140
48	141
49	146
50	147
51	152
52	157
53	158
54	162
55	167
56	171
57	175
58	176
59	179
60	183