A269877 - cp's OEIS frontend

A269877 a(n) = 2^(4n-3)n*(2n-1)(900n^4-4500n^3+8895n^2-8055n+2764), a closed form for a double binomial sum involving absolute values.

n	a(n)
0	0
1	8
2	121728
3	77214720
4	12676235264
5	1090372239360
6	64922717257728
7	3052335748087808
8	121762580539637760
9	4304417014325182464
10	138706918527488491520
11	4154140250223566389248
12	117243264067548833906688
13	3150495258536853477785600
14	81236017376284183797694464

[0, 8, 121728, 77214720, 12676235264, 1090372239360, 64922717257728, 3052335748087808, 121762580539637760, 4304417014325182464, 138706918527488491520, 4154140250223566389248, 117243264067548833906688, 3150495258536853477785600, 81236017376284183797694464]

cp's OEIS Frontend

A269877 a(n) = 2^(4n-3)n*(2n-1)(900n^4-4500n^3+8895n^2-8055n+2764), a closed form for a double binomial sum involving absolute values.

Table of values

List of values

cp's OEIS Frontend

A269877 a(n) = 2^(4*n-3)*n*(2*n-1)*(900*n^4-4500*n^3+8895*n^2-8055*n+2764), a closed form for a double binomial sum involving absolute values.

Table of values

List of values

A269877 a(n) = 2^(4n-3)n*(2n-1)(900n^4-4500n^3+8895n^2-8055n+2764), a closed form for a double binomial sum involving absolute values.