A305601 - cp's OEIS frontend

A305601 G.f. A(x) satisfies: [x^k] (1+x)^(n(n+1)/2) A(x) = 0 for k = n(n-1)/2 + 1 through k = n(n+1)/2 for n >= 1.

n	a(n)
0	1
1	-1
2	0
3	2
4	-7
5	21
6	-56
7	125
8	-209
9	154
10	572
11	-3404
12	11930
13	-35394
14	99144
15	-274550
16	757813
17	-2057867
18	5392764
19	-13383194
20	30829315
21	-63995085
22	112304664
23	-133488537
24	-70063101
25	1177164984
26	-5212740024
27	17744267816
28	-53365305260
29	149452146536
30	-401301906464
31	1053638673004
32	-2741495192679
33	7122821187935
34	-18514807074104
35	48019064944442
36	-123571120120435
37	313403811733896
38	-778001059367703
39	1877334690759250
40	-4370190271978998

[1, -1, 0, 2, -7, 21, -56, 125, -209, 154, 572, -3404, 11930, -35394, 99144, -274550, 757813, -2057867, 5392764, -13383194, 30829315, -63995085, 112304664, -133488537, -70063101, 1177164984, -5212740024, 17744267816, -53365305260, 149452146536, -401301906464, 1053638673004, -2741495192679, 7122821187935, -18514807074104, 48019064944442, -123571120120435, 313403811733896, -778001059367703, 1877334690759250, -4370190271978998]

cp's OEIS Frontend

A305601 G.f. A(x) satisfies: [x^k] (1+x)^(n(n+1)/2) A(x) = 0 for k = n(n-1)/2 + 1 through k = n(n+1)/2 for n >= 1.

Table of values

List of values

cp's OEIS Frontend

A305601 G.f. A(x) satisfies: [x^k] (1+x)^(n*(n+1)/2) * A(x) = 0 for k = n*(n-1)/2 + 1 through k = n*(n+1)/2 for n >= 1.

Table of values

List of values

A305601 G.f. A(x) satisfies: [x^k] (1+x)^(n(n+1)/2) A(x) = 0 for k = n(n-1)/2 + 1 through k = n(n+1)/2 for n >= 1.