A109225 - cp's OEIS frontend

A109225 Triangle read by rows: T(n,0) = T(n,n) = 1 and for 0 < k < n: T(n,k) = T(n-1,k-1) + 1 - T(n-1,k-1) mod 2 + T(n-1,k).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	7
14	6
15	1
16	1
17	5
18	12
19	13
20	8
21	1
22	1
23	6
24	17
25	26
26	21
27	10
28	1
29	1
30	7
31	24
32	43
33	48
34	31
35	12
36	1
37	1
38	8
39	31
40	68
41	91
42	80
43	43
44	14
45	1
46	1
47	9
48	40
49	99
50	160
51	171
52	124
53	57
54	16
55	1
56	1
57	10
58	49
59	140
60	259
61	332
62	295
63	182
64	73
65	18
66	1
67	1
68	11
69	60
70	189
71	400
72	591
73	628
74	477

[1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 7, 6, 1, 1, 5, 12, 13, 8, 1, 1, 6, 17, 26, 21, 10, 1, 1, 7, 24, 43, 48, 31, 12, 1, 1, 8, 31, 68, 91, 80, 43, 14, 1, 1, 9, 40, 99, 160, 171, 124, 57, 16, 1, 1, 10, 49, 140, 259, 332, 295, 182, 73, 18, 1, 1, 11, 60, 189, 400, 591, 628, 477]

cp's OEIS Frontend

A109225 Triangle read by rows: T(n,0) = T(n,n) = 1 and for 0 < k < n: T(n,k) = T(n-1,k-1) + 1 - T(n-1,k-1) mod 2 + T(n-1,k).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	7
14	6
15	1
16	1
17	5
18	12
19	13
20	8
21	1
22	1
23	6
24	17
25	26
26	21
27	10
28	1
29	1
30	7
31	24
32	43
33	48
34	31
35	12
36	1
37	1
38	8
39	31
40	68
41	91
42	80
43	43
44	14
45	1
46	1
47	9
48	40
49	99
50	160
51	171
52	124
53	57
54	16
55	1
56	1
57	10
58	49
59	140
60	259
61	332
62	295
63	182
64	73
65	18
66	1
67	1
68	11
69	60
70	189
71	400
72	591
73	628
74	477

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	7
14	6
15	1
16	1
17	5
18	12
19	13
20	8
21	1
22	1
23	6
24	17
25	26
26	21
27	10
28	1
29	1
30	7
31	24
32	43
33	48
34	31
35	12
36	1
37	1
38	8
39	31
40	68
41	91
42	80
43	43
44	14
45	1
46	1
47	9
48	40
49	99
50	160
51	171
52	124
53	57
54	16
55	1
56	1
57	10
58	49
59	140
60	259
61	332
62	295
63	182
64	73
65	18
66	1
67	1
68	11
69	60
70	189
71	400
72	591
73	628
74	477

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	7
14	6
15	1
16	1
17	5
18	12
19	13
20	8
21	1
22	1
23	6
24	17
25	26
26	21
27	10
28	1
29	1
30	7
31	24
32	43
33	48
34	31
35	12
36	1
37	1
38	8
39	31
40	68
41	91
42	80
43	43
44	14
45	1
46	1
47	9
48	40
49	99
50	160
51	171
52	124
53	57
54	16
55	1
56	1
57	10
58	49
59	140
60	259
61	332
62	295
63	182
64	73
65	18
66	1
67	1
68	11
69	60
70	189
71	400
72	591
73	628
74	477