A053633 - cp's OEIS frontend

A053633 Triangular array T(n,k) giving coefficients in expansion of Product_{j=1..n} (1+x^j) mod x^(n+1)-1.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	2
10	4
11	3
12	3
13	3
14	3
15	6
16	5
17	5
18	6
19	5
20	5
21	10
22	9
23	9
24	9
25	9
26	9
27	9
28	16
29	16
30	16
31	16
32	16
33	16
34	16
35	16
36	30
37	28
38	28
39	29
40	28
41	28
42	29
43	28
44	28
45	52
46	51
47	51
48	51
49	51
50	52
51	51
52	51
53	51
54	51
55	94
56	93
57	93
58	93
59	93
60	93
61	93
62	93
63	93
64	93
65	93
66	172
67	170
68	170
69	172
70	170
71	170
72	172

[1, 1, 1, 2, 1, 1, 2, 2, 2, 2, 4, 3, 3, 3, 3, 6, 5, 5, 6, 5, 5, 10, 9, 9, 9, 9, 9, 9, 16, 16, 16, 16, 16, 16, 16, 16, 30, 28, 28, 29, 28, 28, 29, 28, 28, 52, 51, 51, 51, 51, 52, 51, 51, 51, 51, 94, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 172, 170, 170, 172, 170, 170, 172]

cp's OEIS Frontend

A053633 Triangular array T(n,k) giving coefficients in expansion of Product_{j=1..n} (1+x^j) mod x^(n+1)-1.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	2
10	4
11	3
12	3
13	3
14	3
15	6
16	5
17	5
18	6
19	5
20	5
21	10
22	9
23	9
24	9
25	9
26	9
27	9
28	16
29	16
30	16
31	16
32	16
33	16
34	16
35	16
36	30
37	28
38	28
39	29
40	28
41	28
42	29
43	28
44	28
45	52
46	51
47	51
48	51
49	51
50	52
51	51
52	51
53	51
54	51
55	94
56	93
57	93
58	93
59	93
60	93
61	93
62	93
63	93
64	93
65	93
66	172
67	170
68	170
69	172
70	170
71	170
72	172

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	2
10	4
11	3
12	3
13	3
14	3
15	6
16	5
17	5
18	6
19	5
20	5
21	10
22	9
23	9
24	9
25	9
26	9
27	9
28	16
29	16
30	16
31	16
32	16
33	16
34	16
35	16
36	30
37	28
38	28
39	29
40	28
41	28
42	29
43	28
44	28
45	52
46	51
47	51
48	51
49	51
50	52
51	51
52	51
53	51
54	51
55	94
56	93
57	93
58	93
59	93
60	93
61	93
62	93
63	93
64	93
65	93
66	172
67	170
68	170
69	172
70	170
71	170
72	172

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	2
10	4
11	3
12	3
13	3
14	3
15	6
16	5
17	5
18	6
19	5
20	5
21	10
22	9
23	9
24	9
25	9
26	9
27	9
28	16
29	16
30	16
31	16
32	16
33	16
34	16
35	16
36	30
37	28
38	28
39	29
40	28
41	28
42	29
43	28
44	28
45	52
46	51
47	51
48	51
49	51
50	52
51	51
52	51
53	51
54	51
55	94
56	93
57	93
58	93
59	93
60	93
61	93
62	93
63	93
64	93
65	93
66	172
67	170
68	170
69	172
70	170
71	170
72	172