A381612 - cp's OEIS frontend

A381612 Irregular triangle read by rows: T(n,k) for n-1 <= k <= A328378(n) is the number of permutations of length n having a sum of differences equal to k.

n	a(n)
2	2
3	2
4	4
5	2
6	4
7	12
8	4
9	2
10	2
11	4
12	14
13	32
14	18
15	28
16	14
17	8
18	2
19	4
20	16
21	36
22	92
23	68
24	128
25	92
26	122
27	72
28	64
29	16
30	8
31	2
32	4
33	18
34	40
35	112
36	240
37	256
38	448
39	438
40	668
41	502
42	696
43	480
44	496
45	264
46	240
47	88
48	48
49	2
50	4
51	20
52	44
53	134
54	288
55	696
56	776
57	1566
58	1620
59	2788
60	2524
61	3914
62	3192
63	4544
64	3376
65	4056
66	2720
67	2960
68	1776
69	1712
70	816
71	576
72	144
73	72

[2, 2, 4, 2, 4, 12, 4, 2, 2, 4, 14, 32, 18, 28, 14, 8, 2, 4, 16, 36, 92, 68, 128, 92, 122, 72, 64, 16, 8, 2, 4, 18, 40, 112, 240, 256, 448, 438, 668, 502, 696, 480, 496, 264, 240, 88, 48, 2, 4, 20, 44, 134, 288, 696, 776, 1566, 1620, 2788, 2524, 3914, 3192, 4544, 3376, 4056, 2720, 2960, 1776, 1712, 816, 576, 144, 72]

cp's OEIS Frontend

A381612 Irregular triangle read by rows: T(n,k) for n-1 <= k <= A328378(n) is the number of permutations of length n having a sum of differences equal to k.

Table of values

List of values