A247645 - cp's OEIS frontend

A247645 Triangle read by rows: T(j,0)=1, T(0,j) = [j=0], T(-1,j)=T(-2,j)=0, T(j,k)=2T(j-1,k)-T(j-2,k)+T(j-1,k-2)+T(j-2,k-2).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	4
7	1
8	1
9	1
10	3
11	9
12	5
13	7
14	1
15	1
16	1
17	4
18	16
19	14
20	26
21	8
22	10
23	1
24	1
25	1
26	5
27	25
28	30
29	70
30	34
31	52
32	11
33	13
34	1
35	1
36	1
37	6
38	36
39	55
40	155
41	104
42	190
43	63
44	87
45	14
46	16
47	1
48	1
49	1
50	7
51	49
52	91
53	301
54	259
55	553
56	253
57	403
58	101
59	131
60	17
61	19
62	1
63	1
64	1
65	8
66	64
67	140
68	532
69	560

[1, 1, 1, 1, 1, 2, 4, 1, 1, 1, 3, 9, 5, 7, 1, 1, 1, 4, 16, 14, 26, 8, 10, 1, 1, 1, 5, 25, 30, 70, 34, 52, 11, 13, 1, 1, 1, 6, 36, 55, 155, 104, 190, 63, 87, 14, 16, 1, 1, 1, 7, 49, 91, 301, 259, 553, 253, 403, 101, 131, 17, 19, 1, 1, 1, 8, 64, 140, 532, 560]

cp's OEIS Frontend

A247645 Triangle read by rows: T(j,0)=1, T(0,j) = [j=0], T(-1,j)=T(-2,j)=0, T(j,k)=2T(j-1,k)-T(j-2,k)+T(j-1,k-2)+T(j-2,k-2).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	4
7	1
8	1
9	1
10	3
11	9
12	5
13	7
14	1
15	1
16	1
17	4
18	16
19	14
20	26
21	8
22	10
23	1
24	1
25	1
26	5
27	25
28	30
29	70
30	34
31	52
32	11
33	13
34	1
35	1
36	1
37	6
38	36
39	55
40	155
41	104
42	190
43	63
44	87
45	14
46	16
47	1
48	1
49	1
50	7
51	49
52	91
53	301
54	259
55	553
56	253
57	403
58	101
59	131
60	17
61	19
62	1
63	1
64	1
65	8
66	64
67	140
68	532
69	560

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	4
7	1
8	1
9	1
10	3
11	9
12	5
13	7
14	1
15	1
16	1
17	4
18	16
19	14
20	26
21	8
22	10
23	1
24	1
25	1
26	5
27	25
28	30
29	70
30	34
31	52
32	11
33	13
34	1
35	1
36	1
37	6
38	36
39	55
40	155
41	104
42	190
43	63
44	87
45	14
46	16
47	1
48	1
49	1
50	7
51	49
52	91
53	301
54	259
55	553
56	253
57	403
58	101
59	131
60	17
61	19
62	1
63	1
64	1
65	8
66	64
67	140
68	532
69	560

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	4
7	1
8	1
9	1
10	3
11	9
12	5
13	7
14	1
15	1
16	1
17	4
18	16
19	14
20	26
21	8
22	10
23	1
24	1
25	1
26	5
27	25
28	30
29	70
30	34
31	52
32	11
33	13
34	1
35	1
36	1
37	6
38	36
39	55
40	155
41	104
42	190
43	63
44	87
45	14
46	16
47	1
48	1
49	1
50	7
51	49
52	91
53	301
54	259
55	553
56	253
57	403
58	101
59	131
60	17
61	19
62	1
63	1
64	1
65	8
66	64
67	140
68	532
69	560