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 A065691 a(1) = 0; for n > 1 is a(n) the smallest integer > 0 such that the concatenation a(n)a(n-1)...a(2)a(1) is a square. 8
 0, 10, 8, 16, 146, 22086, 31071113326, 365107058344463715696, 2684967738644586785227227090233956040549004, 809079884187716191997158821357206898310718837487307207657194711477350102495950972665 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n) = A061359(n-1) for n > 2. LINKS CROSSREFS Cf. A050634, A050635, A061359, A065689, A065690. Sequence in context: A280871 A110934 A291424 * A147974 A213553 A317813 Adjacent sequences:  A065688 A065689 A065690 * A065692 A065693 A065694 KEYWORD base,nonn AUTHOR Klaus Brockhaus, Nov 17 2001 STATUS approved

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Last modified December 9 09:37 EST 2021. Contains 349627 sequences. (Running on oeis4.)