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A035074 a(n) is root of square starting with digit 7: first term of runs. 2
27, 84, 265, 837, 2646, 8367, 26458, 83667, 264576, 836661, 2645752, 8366601, 26457514, 83666003, 264575132, 836660027, 2645751312, 8366600266, 26457513111, 83666002654, 264575131107, 836660026535, 2645751311065 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

FORMULA

ceiling(sqrt((7*10^n)), n > 1.

CROSSREFS

Cf. A067477 (squares), A035076 (2..9).

Sequence in context: A043182 A039359 A043962 * A036925 A028993 A007266

Adjacent sequences:  A035071 A035072 A035073 * A035075 A035076 A035077

KEYWORD

nonn,base

AUTHOR

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

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.