A095890 Triangle read by rows: T(n,k) = (n-k+1)^(n-k), n>=1, 1<=k<=n.

1, 2, 1, 9, 2, 1, 64, 9, 2, 1, 625, 64, 9, 2, 1, 7776, 625, 64, 9, 2, 1, 117649, 7776, 625, 64, 9, 2, 1, 2097152, 117649, 7776, 625, 64, 9, 2, 1, 43046721, 2097152, 117649, 7776, 625, 64, 9, 2, 1, 1000000000, 43046721, 2097152, 117649, 7776, 625, 64, 9, 2, 1

Offset: 1

Author

Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004

Keywords

• easy
• nonn
• tabl

Links

• Reinhard Zumkeller, Rows n = 1..120 of triangle, flattened

Programs

Haskell

a095890 n k = (n - k + 1) ^ (n - k)
a095890_row n = map (a095890 n) [1..n]
a095890_tabl = map a095890_row [1..]
-- Reinhard Zumkeller, Jul 07 2013

Mathematica

Table[(n-k+1)^(n-k),{n,10},{k,n}]//Flatten (* Harvey P. Dale, Sep 06 2022 *)