A034100 Fractional part of square root of a(n) starts with digit 4.

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

Offset

1,1

Links

Table of n, a(n) for n=1..55.

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

Adjacent sequences: A034097 A034098 A034099 * A034101 A034102 A034103

Keyword

nonn,easy,base

Author

Patrick De Geest, Sep 15 1998

Status

approved