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A261727
Length of longest prefix of n-th row in A261712 coinciding with row n+1.
2
1, 0, 0, 2, 0, 3, 0, 0, 0, 25, 46, 90, 172, 141, 275, 601, 1102, 2199, 4150
OFFSET
1,4
COMMENTS
A261712(n+1,k) = A261712(n,k) for k = 1 .. a(n).
PROG
(Haskell)
a261727 n = a261727_list !! (n-1)
a261727_list = map (length . takeWhile (== 0)) $
zipWith (zipWith (-)) a261712_tabf $ tail a261712_tabf
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Reinhard Zumkeller, Aug 31 2015
STATUS
approved