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A065780 a(1) = 5; for n > 1 is a(n) the square root of the smallest square > a(n-1)^2 with a(n-1)^2 forming its final digits. 3
5, 15, 35, 285, 4035, 2660285, 40530004035, 478354453999997339715, 31246194523464509984000000000040530004035, 8209490213224904365731763888026434805200000000000000000000478354453999997339715 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Cf. A050635, A065690, A061839, A065781.

Sequence in context: A091875 A056413 A032276 * A105720 A174655 A184631

Adjacent sequences:  A065777 A065778 A065779 * A065781 A065782 A065783

KEYWORD

base,nonn

AUTHOR

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 19 2001

EXTENSIONS

More terms from Ulrich Schimke (UlrSchimke(AT)aol.com), Dec 18 2001

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Last modified February 16 16:34 EST 2012. Contains 205938 sequences.