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A034100 Fractional part of square root of a(n) starts with digit 4. 1
2, 6, 12, 20, 30, 41, 42, 55, 56, 71, 72, 89, 90, 109, 110, 130, 131, 132, 154, 155, 156, 180, 181, 182, 208, 209, 210, 238, 239, 240, 269, 270, 271, 272, 303, 304, 305, 306, 339, 340, 341, 342, 377, 378, 379, 380, 417, 418, 419, 420, 458, 459, 460, 461, 462 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[500], Mod[Floor[10*Sqrt[#]], 10]==4&] (* Harvey P. Dale, Oct 21 2016 *)
CROSSREFS
Cf. A034110.
Sequence in context: A244362 A175967 A254949 * A034110 A298010 A118373
KEYWORD
nonn,easy,base
AUTHOR
Patrick De Geest, Sep 15 1998
STATUS
approved

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Last modified June 23 20:17 EDT 2024. Contains 373653 sequences. (Running on oeis4.)