A106831 - cp's OEIS frontend

A106831 Define a triangle in which the entries are of the form +-1/(b!c!d!e!...), where the order of the factorials is important; read the triangle by rows and record and expand the denominators.

n	a(n)
0	2
1	6
2	4
3	24
4	12
5	12
6	8
7	120
8	48
9	36
10	24
11	48
12	24
13	24
14	16
15	720
16	240
17	144
18	96
19	144
20	72
21	72
22	48
23	240
24	96
25	72
26	48
27	96
28	48
29	48
30	32
31	5040
32	1440
33	720
34	480
35	576
36	288
37	288
38	192
39	720
40	288
41	216
42	144
43	288
44	144
45	144
46	96
47	1440
48	480
49	288
50	192
51	288
52	144
53	144
54	96
55	480
56	192
57	144
58	96
59	192

[2, 6, 4, 24, 12, 12, 8, 120, 48, 36, 24, 48, 24, 24, 16, 720, 240, 144, 96, 144, 72, 72, 48, 240, 96, 72, 48, 96, 48, 48, 32, 5040, 1440, 720, 480, 576, 288, 288, 192, 720, 288, 216, 144, 288, 144, 144, 96, 1440, 480, 288, 192, 288, 144, 144, 96, 480, 192, 144, 96, 192]

cp's OEIS Frontend

A106831 Define a triangle in which the entries are of the form +-1/(b!c!d!e!...), where the order of the factorials is important; read the triangle by rows and record and expand the denominators.

Table of values

List of values