A127258 - cp's OEIS frontend

A127258 Irregular triangle read by rows: B(n,k) (n>=1, 0<=k<=n(n-1)/2) is such that SUM B(n,k)q^(n(n-1)/2-k) gives the expectation of the number of connected components in a random graph on n labeled vertices where every edge is present with probability q.

n	a(n)
1	1
2	-1
3	2
4	1
5	0
6	-3
7	3
8	2
9	-6
10	3
11	4
12	0
13	-6
14	4
15	-6
16	40
17	-105
18	130
19	-60
20	-18
21	15
22	10
23	0
24	-10
25	5
26	-24
27	270
28	-1350
29	3925
30	-7260
31	8712
32	-6485
33	2445
34	60
35	-330
36	-18
37	45
38	20
39	0
40	-15
41	6
42	120
43	-2016
44	15750
45	-75810
46	250950
47	-603435
48	1084104
49	-1471305
50	1502550
51	-1128820
52	589281
53	-182721

[1, -1, 2, 1, 0, -3, 3, 2, -6, 3, 4, 0, -6, 4, -6, 40, -105, 130, -60, -18, 15, 10, 0, -10, 5, -24, 270, -1350, 3925, -7260, 8712, -6485, 2445, 60, -330, -18, 45, 20, 0, -15, 6, 120, -2016, 15750, -75810, 250950, -603435, 1084104, -1471305, 1502550, -1128820, 589281, -182721]

cp's OEIS Frontend

A127258 Irregular triangle read by rows: B(n,k) (n>=1, 0<=k<=n(n-1)/2) is such that SUM B(n,k)q^(n(n-1)/2-k) gives the expectation of the number of connected components in a random graph on n labeled vertices where every edge is present with probability q.

Table of values

List of values

cp's OEIS Frontend

A127258 Irregular triangle read by rows: B(n,k) (n>=1, 0<=k<=n(n-1)/2) is such that SUM B(n,k)*q^(n*(n-1)/2-k) gives the expectation of the number of connected components in a random graph on n labeled vertices where every edge is present with probability q.

Table of values

List of values

A127258 Irregular triangle read by rows: B(n,k) (n>=1, 0<=k<=n(n-1)/2) is such that SUM B(n,k)q^(n(n-1)/2-k) gives the expectation of the number of connected components in a random graph on n labeled vertices where every edge is present with probability q.