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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.

A215079 Triangle T(n,k) = k^n * sum(binomial(n,n-k-j),j=0..n-k).

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 3
5 4
6 0
7 7
8 32
9 27
10 0
11 15
12 176
13 405
14 256
15 0
16 31
17 832
18 3888
19 6144
20 3125
21 0
22 63
23 3648
24 30618
25 90112
26 109375
27 46656
28 0
29 127
30 15360
31 216513
32 1048576
33 2265625
34 2239488
35 823543
36 0
37 255
38 63232
39 1436859
40 10682368
41 36328125
42 62145792
43 51883209
44 16777216
45 0
46 511
47 257024
48 9172278
49 100139008
50 500000000
51 1310100480
52 1856265922
53 1342177280
54 387420489
55 0
56 1023
57 1037312
58 57159432
59 889192448
60 6230468750
61 23339943936
62 49715643824
63 60129542144
64 38354628411
65 10000000000

List of values

[1, 0, 1, 0, 3, 4, 0, 7, 32, 27, 0, 15, 176, 405, 256, 0, 31, 832, 3888, 6144, 3125, 0, 63, 3648, 30618, 90112, 109375, 46656, 0, 127, 15360, 216513, 1048576, 2265625, 2239488, 823543, 0, 255, 63232, 1436859, 10682368, 36328125, 62145792, 51883209, 16777216, 0, 511, 257024, 9172278, 100139008, 500000000, 1310100480, 1856265922, 1342177280, 387420489, 0, 1023, 1037312, 57159432, 889192448, 6230468750, 23339943936, 49715643824, 60129542144, 38354628411, 10000000000]

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