A031087 - cp's OEIS frontend

A031087 Triangle T(n,k): write n in base 9, reverse order of digits.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	0
10	1
11	1
12	1
13	2
14	1
15	3
16	1
17	4
18	1
19	5
20	1
21	6
22	1
23	7
24	1
25	8
26	1
27	0
28	2
29	1
30	2
31	2
32	2
33	3
34	2
35	4
36	2
37	5
38	2
39	6
40	2
41	7
42	2
43	8
44	2
45	0
46	3
47	1
48	3
49	2
50	3
51	3
52	3
53	4
54	3
55	5
56	3
57	6
58	3
59	7
60	3
61	8
62	3
63	0
64	4
65	1
66	4
67	2
68	4
69	3
70	4
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	0
82	5
83	1
84	5
85	2
86	5
87	3
88	5
89	4
90	5

[0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 8, 1, 0, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 2, 8, 2, 0, 3, 1, 3, 2, 3, 3, 3, 4, 3, 5, 3, 6, 3, 7, 3, 8, 3, 0, 4, 1, 4, 2, 4, 3, 4, 4, 4, 5, 4, 6, 4, 7, 4, 8, 4, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5]

cp's OEIS Frontend

A031087 Triangle T(n,k): write n in base 9, reverse order of digits.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	0
10	1
11	1
12	1
13	2
14	1
15	3
16	1
17	4
18	1
19	5
20	1
21	6
22	1
23	7
24	1
25	8
26	1
27	0
28	2
29	1
30	2
31	2
32	2
33	3
34	2
35	4
36	2
37	5
38	2
39	6
40	2
41	7
42	2
43	8
44	2
45	0
46	3
47	1
48	3
49	2
50	3
51	3
52	3
53	4
54	3
55	5
56	3
57	6
58	3
59	7
60	3
61	8
62	3
63	0
64	4
65	1
66	4
67	2
68	4
69	3
70	4
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	0
82	5
83	1
84	5
85	2
86	5
87	3
88	5
89	4
90	5

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	0
10	1
11	1
12	1
13	2
14	1
15	3
16	1
17	4
18	1
19	5
20	1
21	6
22	1
23	7
24	1
25	8
26	1
27	0
28	2
29	1
30	2
31	2
32	2
33	3
34	2
35	4
36	2
37	5
38	2
39	6
40	2
41	7
42	2
43	8
44	2
45	0
46	3
47	1
48	3
49	2
50	3
51	3
52	3
53	4
54	3
55	5
56	3
57	6
58	3
59	7
60	3
61	8
62	3
63	0
64	4
65	1
66	4
67	2
68	4
69	3
70	4
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	0
82	5
83	1
84	5
85	2
86	5
87	3
88	5
89	4
90	5

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	0
10	1
11	1
12	1
13	2
14	1
15	3
16	1
17	4
18	1
19	5
20	1
21	6
22	1
23	7
24	1
25	8
26	1
27	0
28	2
29	1
30	2
31	2
32	2
33	3
34	2
35	4
36	2
37	5
38	2
39	6
40	2
41	7
42	2
43	8
44	2
45	0
46	3
47	1
48	3
49	2
50	3
51	3
52	3
53	4
54	3
55	5
56	3
57	6
58	3
59	7
60	3
61	8
62	3
63	0
64	4
65	1
66	4
67	2
68	4
69	3
70	4
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	0
82	5
83	1
84	5
85	2
86	5
87	3
88	5
89	4
90	5