A309489 - cp's OEIS frontend

A309489 Numbers k such that the sum of digits in odd places is equal to the sum of digits in even places in k!.

n	a(n)
1	11
2	18
3	20
4	25
5	27
6	28
7	32
8	35
9	41
10	43
11	51
12	57
13	60
14	68
15	72
16	74
17	80
18	102
19	105
20	107
21	113
22	121
23	122
24	138
25	140
26	145
27	156
28	161
29	166
30	171
31	228
32	233
33	245
34	282
35	301
36	307
37	308
38	311
39	315
40	329
41	333
42	335
43	340
44	347
45	349
46	351
47	353
48	366
49	386
50	412
51	420
52	454
53	469
54	478

[11, 18, 20, 25, 27, 28, 32, 35, 41, 43, 51, 57, 60, 68, 72, 74, 80, 102, 105, 107, 113, 121, 122, 138, 140, 145, 156, 161, 166, 171, 228, 233, 245, 282, 301, 307, 308, 311, 315, 329, 333, 335, 340, 347, 349, 351, 353, 366, 386, 412, 420, 454, 469, 478]

cp's OEIS Frontend

A309489 Numbers k such that the sum of digits in odd places is equal to the sum of digits in even places in k!.

Table of values

List of values

n	a(n)
1	11
2	18
3	20
4	25
5	27
6	28
7	32
8	35
9	41
10	43
11	51
12	57
13	60
14	68
15	72
16	74
17	80
18	102
19	105
20	107
21	113
22	121
23	122
24	138
25	140
26	145
27	156
28	161
29	166
30	171
31	228
32	233
33	245
34	282
35	301
36	307
37	308
38	311
39	315
40	329
41	333
42	335
43	340
44	347
45	349
46	351
47	353
48	366
49	386
50	412
51	420
52	454
53	469
54	478

n	a(n)
1	11
2	18
3	20
4	25
5	27
6	28
7	32
8	35
9	41
10	43
11	51
12	57
13	60
14	68
15	72
16	74
17	80
18	102
19	105
20	107
21	113
22	121
23	122
24	138
25	140
26	145
27	156
28	161
29	166
30	171
31	228
32	233
33	245
34	282
35	301
36	307
37	308
38	311
39	315
40	329
41	333
42	335
43	340
44	347
45	349
46	351
47	353
48	366
49	386
50	412
51	420
52	454
53	469
54	478

n	a(n)
1	11
2	18
3	20
4	25
5	27
6	28
7	32
8	35
9	41
10	43
11	51
12	57
13	60
14	68
15	72
16	74
17	80
18	102
19	105
20	107
21	113
22	121
23	122
24	138
25	140
26	145
27	156
28	161
29	166
30	171
31	228
32	233
33	245
34	282
35	301
36	307
37	308
38	311
39	315
40	329
41	333
42	335
43	340
44	347
45	349
46	351
47	353
48	366
49	386
50	412
51	420
52	454
53	469
54	478