A253587 - cp's OEIS frontend

A253587 The sum of the i-th ternary digits of n, k, and T(n,k) equals 0 (mod 3) for each i>=0 (leading zeros included); triangle T(n,k), n>=0, 0<=k<=n, read by rows.

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

[0, 2, 1, 1, 0, 2, 6, 8, 7, 3, 8, 7, 6, 5, 4, 7, 6, 8, 4, 3, 5, 3, 5, 4, 0, 2, 1, 6, 5, 4, 3, 2, 1, 0, 8, 7, 4, 3, 5, 1, 0, 2, 7, 6, 8, 18, 20, 19, 24, 26, 25, 21, 23, 22, 9, 20, 19, 18, 26, 25, 24, 23, 22, 21, 11, 10, 19, 18, 20, 25, 24, 26, 22, 21, 23, 10, 9, 11]

cp's OEIS Frontend

A253587 The sum of the i-th ternary digits of n, k, and T(n,k) equals 0 (mod 3) for each i>=0 (leading zeros included); triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values

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

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

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