OFFSET
1,1
COMMENTS
Seen as a triangle read by rows: T(n,k) = 2*n, 1<=k<=n. - Reinhard Zumkeller, Mar 18 2011
LINKS
Reinhard Zumkeller, Rows n = 1..128 of triangle, flattened
MATHEMATICA
Table[Table[2n, n], {n, 12}]//Flatten (* Harvey P. Dale, Apr 21 2018 *)
PROG
(Haskell)
a111650 n k = a111650_tabl !! (n-1) !! (k-1)
a111650_row n = a111650_tabl !! (n-1)
a111650_tabl = iterate (\xs@(x:_) -> map (+ 2) (x:xs)) [2]
a111650_list = concat a111650_tabl
-- Reinhard Zumkeller, Nov 14 2015, Mar 18 2011
CROSSREFS
KEYWORD
AUTHOR
Jonathan Vos Post, Aug 12 2005
STATUS
approved