OFFSET
1,3
LINKS
Reinhard Zumkeller, Rows n = 1..20 of triangle, flattened
EXAMPLE
. 1: 1
. 2: 1
. 3: 3
. 4: 8,5,1
. 5: 15,12,9,5,1
. 6: 31,28,25,20,13,8,3
. 7: 63,60,57,52,47,44,41,37,33,29,24,17,13,8,3
. 8: 127,124,121,116,111,108,105,99,91,88,85,81,77,70,... (27 terms)
. 9: 254,251,248,245,239,236,233,227,218,213,207,202,195,,... (49 terms)
PROG
(Haskell)
a261644 n = a261644_list !! (n-1)
a261644_list = zipWith (-)
(map a062383 a260273_list) $ map fromIntegral a260273_list
a261644_tabf = [1] : f (tail $ zip a261645_list a261644_list) where
f dxs = (map snd (dxs'' ++ [dx])) : f dxs' where
(dxs'', dx:dxs') = span ((<= 0) . fst) dxs
a261644_row n = a261644_tabf !! (n-1)
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Reinhard Zumkeller, Aug 30 2015
STATUS
approved