A322624 - cp's OEIS frontend

A322624 a(n) = [x^ny^n/(2n)!] = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), for n >= 0.

n	a(n)
0	1
1	2
2	30
3	1040
4	68390
5	7322112
6	1161583500
7	256124504064
8	74951279707590
9	28111587450552320
10	13150168194612783620
11	7506080397628737060864
12	5134940145279960796279772
13	4147521174738722818202009600
14	3905319571990498174351316679000
15	4240383868623169668722969322455040
16	5259293239338602314365337386168258630
17	7389696615368349382565487880348756869120

[1, 2, 30, 1040, 68390, 7322112, 1161583500, 256124504064, 74951279707590, 28111587450552320, 13150168194612783620, 7506080397628737060864, 5134940145279960796279772, 4147521174738722818202009600, 3905319571990498174351316679000, 4240383868623169668722969322455040, 5259293239338602314365337386168258630, 7389696615368349382565487880348756869120]

cp's OEIS Frontend

A322624 a(n) = [x^ny^n/(2n)!] = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), for n >= 0.

Table of values

List of values

cp's OEIS Frontend

A322624 a(n) = [x^n*y^n/(2*n)!] = (cosh(x)*cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)*sinh(y)), for n >= 0.

Table of values

List of values

A322624 a(n) = [x^ny^n/(2n)!] = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), for n >= 0.