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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A240021 Number T(n,k) of partitions of n into distinct parts, where k is the difference between the number of odd parts and the number of even parts; triangle T(n,k), n>=0, read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 0
7 0
8 1
9 2
10 1
11 1
12 1
13 0
14 1
15 1
16 1
17 3
18 1
19 1
20 1
21 0
22 2
23 2
24 2
25 4
26 1
27 0
28 1
29 2
30 1
31 1
32 4
33 2
34 4
35 5
36 1
37 1
38 1
39 1
40 2
41 1
42 2
43 6
44 3
45 1
46 6
47 6
48 1
49 2
50 2
51 1
52 3
53 1
54 5
55 9
56 3
57 2
58 9
59 7
60 2
61 4
62 3
63 2
64 3
65 2
66 8
67 12
68 4
69 0
70 1
71 4
72 12
73 8
74 3
75 7
76 4
77 3
78 4
79 3
80 14
81 16
82 4
83 1
84 1
85 7
86 16
87 9
88 6
89 11
90 5
91 1
92 4
93 4
94 6
95 20
96 20
97 5
98 2
99 2

List of values

[1, 1, 1, 1, 1, 1, 0, 0, 1, 2, 1, 1, 1, 0, 1, 1, 1, 3, 1, 1, 1, 0, 2, 2, 2, 4, 1, 0, 1, 2, 1, 1, 4, 2, 4, 5, 1, 1, 1, 1, 2, 1, 2, 6, 3, 1, 6, 6, 1, 2, 2, 1, 3, 1, 5, 9, 3, 2, 9, 7, 2, 4, 3, 2, 3, 2, 8, 12, 4, 0, 1, 4, 12, 8, 3, 7, 4, 3, 4, 3, 14, 16, 4, 1, 1, 7, 16, 9, 6, 11, 5, 1, 4, 4, 6, 20, 20, 5, 2, 2]