A322239 - cp's OEIS frontend

A322239 a(n) = [x^ny^n] 1/(1 - x - y - x^2 + xy - y^2).

n	a(n)
0	1
1	1
2	9
3	35
4	199
5	1005
6	5475
7	29469
8	161685
9	889759
10	4932641
11	27453471
12	153432241
13	860203135
14	4836370101
15	27257082723
16	153943314903
17	871064225325
18	4936953721755
19	28022734759125
20	159272314734843
21	906343638290133
22	5163219745287591
23	29442990216677985
24	168050775902585751
25	959985125666243145
26	5488145767630988595
27	31397773111113948245
28	179747041781229841375

[1, 1, 9, 35, 199, 1005, 5475, 29469, 161685, 889759, 4932641, 27453471, 153432241, 860203135, 4836370101, 27257082723, 153943314903, 871064225325, 4936953721755, 28022734759125, 159272314734843, 906343638290133, 5163219745287591, 29442990216677985, 168050775902585751, 959985125666243145, 5488145767630988595, 31397773111113948245, 179747041781229841375]

cp's OEIS Frontend

A322239 a(n) = [x^ny^n] 1/(1 - x - y - x^2 + xy - y^2).

Table of values

List of values

cp's OEIS Frontend

A322239 a(n) = [x^n*y^n] 1/(1 - x - y - x^2 + x*y - y^2).

Table of values

List of values

A322239 a(n) = [x^ny^n] 1/(1 - x - y - x^2 + xy - y^2).