A323231 - cp's OEIS frontend

A323231 A(n, k) = [x^k] (1/(1-x) + x/(1-x)^n), square array read by descending antidiagonals for n, k >= 0.

n	a(n)
0	1
1	2
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	3
13	2
14	1
15	1
16	2
17	4
18	4
19	2
20	1
21	1
22	2
23	5
24	7
25	5
26	2
27	1
28	1
29	2
30	6
31	11
32	11
33	6
34	2
35	1
36	1
37	2
38	7
39	16
40	21
41	16
42	7
43	2
44	1
45	1
46	2
47	8
48	22
49	36
50	36
51	22
52	8
53	2
54	1
55	1
56	2
57	9
58	29
59	57
60	71
61	57
62	29
63	9
64	2
65	1
66	1
67	2
68	10
69	37
70	85
71	127
72	127
73	85
74	37
75	10
76	2
77	1

[1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 2, 1, 1, 2, 4, 4, 2, 1, 1, 2, 5, 7, 5, 2, 1, 1, 2, 6, 11, 11, 6, 2, 1, 1, 2, 7, 16, 21, 16, 7, 2, 1, 1, 2, 8, 22, 36, 36, 22, 8, 2, 1, 1, 2, 9, 29, 57, 71, 57, 29, 9, 2, 1, 1, 2, 10, 37, 85, 127, 127, 85, 37, 10, 2, 1]

cp's OEIS Frontend

A323231 A(n, k) = [x^k] (1/(1-x) + x/(1-x)^n), square array read by descending antidiagonals for n, k >= 0.

Table of values

List of values

n	a(n)
0	1
1	2
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	3
13	2
14	1
15	1
16	2
17	4
18	4
19	2
20	1
21	1
22	2
23	5
24	7
25	5
26	2
27	1
28	1
29	2
30	6
31	11
32	11
33	6
34	2
35	1
36	1
37	2
38	7
39	16
40	21
41	16
42	7
43	2
44	1
45	1
46	2
47	8
48	22
49	36
50	36
51	22
52	8
53	2
54	1
55	1
56	2
57	9
58	29
59	57
60	71
61	57
62	29
63	9
64	2
65	1
66	1
67	2
68	10
69	37
70	85
71	127
72	127
73	85
74	37
75	10
76	2
77	1

n	a(n)
0	1
1	2
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	3
13	2
14	1
15	1
16	2
17	4
18	4
19	2
20	1
21	1
22	2
23	5
24	7
25	5
26	2
27	1
28	1
29	2
30	6
31	11
32	11
33	6
34	2
35	1
36	1
37	2
38	7
39	16
40	21
41	16
42	7
43	2
44	1
45	1
46	2
47	8
48	22
49	36
50	36
51	22
52	8
53	2
54	1
55	1
56	2
57	9
58	29
59	57
60	71
61	57
62	29
63	9
64	2
65	1
66	1
67	2
68	10
69	37
70	85
71	127
72	127
73	85
74	37
75	10
76	2
77	1

n	a(n)
0	1
1	2
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	3
13	2
14	1
15	1
16	2
17	4
18	4
19	2
20	1
21	1
22	2
23	5
24	7
25	5
26	2
27	1
28	1
29	2
30	6
31	11
32	11
33	6
34	2
35	1
36	1
37	2
38	7
39	16
40	21
41	16
42	7
43	2
44	1
45	1
46	2
47	8
48	22
49	36
50	36
51	22
52	8
53	2
54	1
55	1
56	2
57	9
58	29
59	57
60	71
61	57
62	29
63	9
64	2
65	1
66	1
67	2
68	10
69	37
70	85
71	127
72	127
73	85
74	37
75	10
76	2
77	1