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A095890
Triangle read by rows: T(n,k) = (n-k+1)^(n-k), n>=1, 1<=k<=n.
2
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
1,2
LINKS
MATHEMATICA
Table[(n-k+1)^(n-k), {n, 10}, {k, n}]//Flatten (* Harvey P. Dale, Sep 06 2022 *)
PROG
(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
CROSSREFS
Sequence in context: A194555 A024578 A030327 * A292827 A243999 A223141
KEYWORD
easy,nonn,tabl
AUTHOR
Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004
STATUS
approved