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 A086667 Triangular array, read by rows: T(n,k) = greatest decimal number of length k contained as a string in the first n positions of the decimal expansion of Pi, 1 <= k <= n. 0
 3, 3, 31, 4, 31, 314, 4, 41, 314, 3141, 5, 41, 415, 3141, 31415, 9, 59, 415, 4159, 31415, 314159, 9, 92, 592, 4159, 41592, 314159, 3141592, 9, 92, 926, 5926, 41592, 415926, 3141592, 31415926, 9, 92, 926, 9265, 59265, 415926, 4159265, 31415926 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Conjecture: T(n,k) -> 10^k - 1. LINKS Dave Andersen, The Pi-Search Page. Eric Weisstein's World of Mathematics, Pi. EXAMPLE Triangle begins:   3,   3, 31,   4, 31, 314,   4, 41, 314, 3141,   5, 41, 415, 3141, 31415,   ... CROSSREFS Cf. A000796. Sequence in context: A151480 A096351 A344934 * A067098 A188897 A088060 Adjacent sequences:  A086664 A086665 A086666 * A086668 A086669 A086670 KEYWORD nonn,base,tabl AUTHOR Reinhard Zumkeller, Jul 27 2003 STATUS approved

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Last modified August 1 19:59 EDT 2021. Contains 346402 sequences. (Running on oeis4.)