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A035072 a(n) is root of square starting with digit 5: first term of runs. 2
23, 71, 224, 708, 2237, 7072, 22361, 70711, 223607, 707107, 2236068, 7071068, 22360680, 70710679, 223606798, 707106782, 2236067978, 7071067812, 22360679775, 70710678119, 223606797750, 707106781187, 2236067977500 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

FORMULA

ceiling(sqrt((5*10^n)), n > 1.

CROSSREFS

Cf. A067475 (squares), A035076 (2..9).

Sequence in context: A142405 A139962 A139878 * A201716 A044161 A044542

Adjacent sequences:  A035069 A035070 A035071 * A035073 A035074 A035075

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 1998.

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Last modified February 15 19:07 EST 2012. Contains 205852 sequences.