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A197419 Triangle with the numerator of the coefficient [x^k] of the second order Bernoulli polynomial B_n^(2)(x) in row n, column 0<=k<=n.

Table of values

n a(n)
0 1
1 -1
2 1
3 5
4 -2
5 1
6 -1
7 5
8 -3
9 1
10 1
11 -2
12 5
13 -4
14 1
15 1
16 1
17 -5
18 25
19 -5
20 1
21 -5
22 1
23 3
24 -10
25 25
26 -6
27 1
28 -1
29 -5
30 7
31 7
32 -35
33 35
34 -7
35 1
36 7
37 -4
38 -10
39 28
40 7
41 -28
42 70
43 -8
44 1
45 3
46 21
47 -6
48 -10
49 21
50 63
51 -42
52 30
53 -9
54 1
55 -15
56 3
57 21
58 -20
59 -25
60 42
61 21
62 -60
63 75
64 -10
65 1
66 -5
67 -15
68 33
69 77
70 -55
71 -55
72 77
73 33
74 -165
75 275
76 -11
77 1
78 7601
79 -10
80 -45
81 66
82 231
83 -132
84 -110
85 132
86 99
87 -110
88 55
89 -12
90 1

List of values

[1, -1, 1, 5, -2, 1, -1, 5, -3, 1, 1, -2, 5, -4, 1, 1, 1, -5, 25, -5, 1, -5, 1, 3, -10, 25, -6, 1, -1, -5, 7, 7, -35, 35, -7, 1, 7, -4, -10, 28, 7, -28, 70, -8, 1, 3, 21, -6, -10, 21, 63, -42, 30, -9, 1, -15, 3, 21, -20, -25, 42, 21, -60, 75, -10, 1, -5, -15, 33, 77, -55, -55, 77, 33, -165, 275, -11, 1, 7601, -10, -45, 66, 231, -132, -110, 132, 99, -110, 55, -12, 1]