A167666 - cp's OEIS frontend

A167666 Triangle read by rows given by [1,1,-4,2,0,0,0,0,0,0,0,...] DELTA [1,0,0,1,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	0
7	4
8	5
9	1
10	0
11	0
12	6
13	7
14	1
15	0
16	0
17	0
18	8
19	9
20	1
21	0
22	0
23	0
24	0
25	10
26	11
27	1
28	0
29	0
30	0
31	0
32	0
33	12
34	13
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	14
43	15
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	16
53	17
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	18
64	19
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	20
76	21
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	22
89	23
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0

[1, 1, 1, 2, 3, 1, 0, 4, 5, 1, 0, 0, 6, 7, 1, 0, 0, 0, 8, 9, 1, 0, 0, 0, 0, 10, 11, 1, 0, 0, 0, 0, 0, 12, 13, 1, 0, 0, 0, 0, 0, 0, 14, 15, 1, 0, 0, 0, 0, 0, 0, 0, 16, 17, 1, 0, 0, 0, 0, 0, 0, 0, 0, 18, 19, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 23, 1, 0, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A167666 Triangle read by rows given by [1,1,-4,2,0,0,0,0,0,0,0,...] DELTA [1,0,0,1,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	0
7	4
8	5
9	1
10	0
11	0
12	6
13	7
14	1
15	0
16	0
17	0
18	8
19	9
20	1
21	0
22	0
23	0
24	0
25	10
26	11
27	1
28	0
29	0
30	0
31	0
32	0
33	12
34	13
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	14
43	15
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	16
53	17
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	18
64	19
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	20
76	21
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	22
89	23
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	0
7	4
8	5
9	1
10	0
11	0
12	6
13	7
14	1
15	0
16	0
17	0
18	8
19	9
20	1
21	0
22	0
23	0
24	0
25	10
26	11
27	1
28	0
29	0
30	0
31	0
32	0
33	12
34	13
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	14
43	15
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	16
53	17
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	18
64	19
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	20
76	21
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	22
89	23
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	0
7	4
8	5
9	1
10	0
11	0
12	6
13	7
14	1
15	0
16	0
17	0
18	8
19	9
20	1
21	0
22	0
23	0
24	0
25	10
26	11
27	1
28	0
29	0
30	0
31	0
32	0
33	12
34	13
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	14
43	15
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	16
53	17
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	18
64	19
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	20
76	21
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	22
89	23
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0