A055947 - OEIS

A055947 as a simple table

n	a(n)
0	0
1	0
2	0
3	2
4	0
5	-2
6	4
7	2
8	0
9	8
10	0
11	-8
12	8
13	0
14	-8
15	8
16	0
17	-8
18	16
19	8
20	0
21	16
22	8
23	0
24	16
25	8
26	0
27	26
28	0
29	-26
30	20
31	-6
32	-32
33	14
34	-12
35	-38
36	32
37	6
38	-20
39	26
40	0
41	-26
42	20
43	-6
44	-32
45	38
46	12
47	-14
48	32
49	6
50	-20
51	26
52	0
53	-26
54	52
55	26
56	0
57	46
58	20
59	-6
60	40
61	14
62	-12
63	58
64	32
65	6
66	52
67	26
68	0
69	46
70	20
71	-6
72	64
73	38
74	12
75	58
76	32
77	6
78	52
79	26
80	0
81	80
82	0
83	-80
84	56
85	-24
86	-104
87	32
88	-48

[0,0,0,2,0,-2,4,2,0,8,0,-8,8,0,-8,8,0,-8,16,8,0, 16,8,0,16,8,0,26,0,-26,20,-6,-32,14,-12,-38,32,6, -20,26,0,-26,20,-6,-32,38,12,-14,32,6,-20,26,0, -26,52,26,0,46,20,-6,40,14,-12,58,32,6,52,26,0,46, 20,-6,64,38,12,58,32,6,52,26,0,80,0,-80,56,-24, -104,32,-48]