A325309 - cp's OEIS frontend

A325309 Square array read by downward antidiagonals: A(n, k) is the k-th Niven number (or Harshad number) in base n.

n	a(n)
2	1
3	2
4	1
5	4
6	2
7	1
8	6
9	3
10	2
11	1
12	8
13	4
14	3
15	2
16	1
17	10
18	6
19	4
20	3
21	2
22	1
23	12
24	8
25	6
26	4
27	3
28	2
29	1
30	16
31	9
32	8
33	5
34	4
35	3
36	2
37	1
38	18
39	10
40	9
41	6
42	5
43	4
44	3
45	2
46	1
47	20
48	12
49	12
50	8
51	6
52	5
53	4
54	3
55	2
56	1
57	21
58	15
59	16
60	10
61	10
62	6
63	5
64	4
65	3
66	2
67	1
68	24
69	16
70	18
71	12
72	12
73	7
74	6
75	5
76	4
77	3
78	2
79	1
80	32
81	18

[1, 2, 1, 4, 2, 1, 6, 3, 2, 1, 8, 4, 3, 2, 1, 10, 6, 4, 3, 2, 1, 12, 8, 6, 4, 3, 2, 1, 16, 9, 8, 5, 4, 3, 2, 1, 18, 10, 9, 6, 5, 4, 3, 2, 1, 20, 12, 12, 8, 6, 5, 4, 3, 2, 1, 21, 15, 16, 10, 10, 6, 5, 4, 3, 2, 1, 24, 16, 18, 12, 12, 7, 6, 5, 4, 3, 2, 1, 32, 18]

cp's OEIS Frontend

A325309 Square array read by downward antidiagonals: A(n, k) is the k-th Niven number (or Harshad number) in base n.

Table of values

List of values

n	a(n)
2	1
3	2
4	1
5	4
6	2
7	1
8	6
9	3
10	2
11	1
12	8
13	4
14	3
15	2
16	1
17	10
18	6
19	4
20	3
21	2
22	1
23	12
24	8
25	6
26	4
27	3
28	2
29	1
30	16
31	9
32	8
33	5
34	4
35	3
36	2
37	1
38	18
39	10
40	9
41	6
42	5
43	4
44	3
45	2
46	1
47	20
48	12
49	12
50	8
51	6
52	5
53	4
54	3
55	2
56	1
57	21
58	15
59	16
60	10
61	10
62	6
63	5
64	4
65	3
66	2
67	1
68	24
69	16
70	18
71	12
72	12
73	7
74	6
75	5
76	4
77	3
78	2
79	1
80	32
81	18

n	a(n)
2	1
3	2
4	1
5	4
6	2
7	1
8	6
9	3
10	2
11	1
12	8
13	4
14	3
15	2
16	1
17	10
18	6
19	4
20	3
21	2
22	1
23	12
24	8
25	6
26	4
27	3
28	2
29	1
30	16
31	9
32	8
33	5
34	4
35	3
36	2
37	1
38	18
39	10
40	9
41	6
42	5
43	4
44	3
45	2
46	1
47	20
48	12
49	12
50	8
51	6
52	5
53	4
54	3
55	2
56	1
57	21
58	15
59	16
60	10
61	10
62	6
63	5
64	4
65	3
66	2
67	1
68	24
69	16
70	18
71	12
72	12
73	7
74	6
75	5
76	4
77	3
78	2
79	1
80	32
81	18

n	a(n)
2	1
3	2
4	1
5	4
6	2
7	1
8	6
9	3
10	2
11	1
12	8
13	4
14	3
15	2
16	1
17	10
18	6
19	4
20	3
21	2
22	1
23	12
24	8
25	6
26	4
27	3
28	2
29	1
30	16
31	9
32	8
33	5
34	4
35	3
36	2
37	1
38	18
39	10
40	9
41	6
42	5
43	4
44	3
45	2
46	1
47	20
48	12
49	12
50	8
51	6
52	5
53	4
54	3
55	2
56	1
57	21
58	15
59	16
60	10
61	10
62	6
63	5
64	4
65	3
66	2
67	1
68	24
69	16
70	18
71	12
72	12
73	7
74	6
75	5
76	4
77	3
78	2
79	1
80	32
81	18