|
| |
|
|
A027208
|
|
a(n) = Sum{T(n,k)*T(n,k+1), 0<=k<=n-1, T given by A026725.
|
|
0
| |
|
|
1, 4, 19, 72, 338, 1289, 6027, 23117, 107746, 415058, 1929383, 7456777, 34584731, 134005510, 620344059, 2408498148, 11131638368, 43289074671, 199800878749, 778025282080
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
