A161439 - OEIS

A161439 as a simple table

n	a(n)
0	1
1	7
2	27
3	76
4	174
5	343
6	602
7	961
8	1415
9	1940
10	2493
11	3017
12	3450
13	3736
14	3836
15	3736
16	3450
17	3017
18	2493
19	1940
20	1415
21	961
22	602
23	343
24	174
25	76
26	27
27	7
28	1
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0

[1,7,27,76,174,343,602,961,1415,1940,2493,3017, 3450,3736,3836,3736,3450,3017,2493,1940,1415,961, 602,343,174,76,27,7,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0]