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A200742 Greatest number such that in table A200741 the first terms in row n coincide with row n+1. 3
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified April 7 13:36 EDT 2020. Contains 333305 sequences. (Running on oeis4.)