A200742 Greatest number such that in table A200741 the first terms in row n coincide with row n+1.

1, 2, 4, 10, 7, 35, 33, 36, 31, 82, 17, 81, 78, 170, 55, 132, 28, 195, 247, 313, 439, 325, 415, 498, 376, 213, 161, 693, 608, 948, 739, 557, 831, 1007, 1252, 631, 1156, 1370, 148, 579, 1023, 1755, 1677, 1239, 1638, 1839, 2281, 2401, 1963, 2630, 2521, 2951

Offset

1,2

Comments

Shorter rows in A200741 are contained in longer rows; a(n) gives length of common initial segments of consecutive rows: A200741(n,k) = A200741(n+1,k) for k <= a(n).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..100

Prog

(Haskell)
a200742 n = a200742_list !! (n-1)
a200742_list = f a200741_tabl where
   f (rs:rss'@(rs':rss)) =
     (length $ takeWhile (== EQ) $ zipWith compare rs rs') : f rss'

Crossrefs

Cf. A200738.

Sequence in context: A320537 A331708 A227289 * A178729 A124108 A173824

Adjacent sequences: A200739 A200740 A200741 * A200743 A200744 A200745

Keyword

nonn

Author

Reinhard Zumkeller, Nov 21 2011

Status

approved