A121630 - cp's OEIS frontend

A121630 Finite sum involving signless Stirling numbers of the first kind and the Bell numbers. Appears in the process of normal ordering of n-th power of (a)^3(a+a), where a+ and a are boson creation and annihilation operators, respectively.

n	a(n)
0	1
1	4
2	29
3	302
4	4089
5	68056
6	1342949
7	30635074
8	792915057
9	22952573484
10	734630159341
11	25757268041814
12	981687991859689
13	40407710444419072
14	1786311057929722549
15	84404172618241446506
16	4244839086310722228449

[1, 4, 29, 302, 4089, 68056, 1342949, 30635074, 792915057, 22952573484, 734630159341, 25757268041814, 981687991859689, 40407710444419072, 1786311057929722549, 84404172618241446506, 4244839086310722228449]

cp's OEIS Frontend

A121630 Finite sum involving signless Stirling numbers of the first kind and the Bell numbers. Appears in the process of normal ordering of n-th power of (a)^3(a+a), where a+ and a are boson creation and annihilation operators, respectively.

Table of values

List of values

cp's OEIS Frontend

A121630 Finite sum involving signless Stirling numbers of the first kind and the Bell numbers. Appears in the process of normal ordering of n-th power of (a)^3*(a+*a), where a+ and a are boson creation and annihilation operators, respectively.

Table of values

List of values

A121630 Finite sum involving signless Stirling numbers of the first kind and the Bell numbers. Appears in the process of normal ordering of n-th power of (a)^3(a+a), where a+ and a are boson creation and annihilation operators, respectively.