A034099 Fractional part of square root of a(n) starts with digit 3.

11, 19, 29, 40, 54, 69, 70, 87, 88, 107, 108, 128, 129, 152, 153, 177, 178, 179, 205, 206, 207, 235, 236, 237, 266, 267, 268, 300, 301, 302, 335, 336, 337, 338, 373, 374, 375, 376, 413, 414, 415, 416, 454, 455, 456, 457, 498, 499, 500, 501, 543, 544, 545

Offset

1,1

Links

Michael De Vlieger, Table of n, a(n) for n = 1..10000 (first 1001 terms from Harvey P. Dale)

Mathematica

is3Q[n_]:=Module[{c=RealDigits[Sqrt[n], 10, 10+IntegerLength[n]], d}, d=c[[2]]+1; c[[1, d]]==3]; Select[Range[600], is3Q]  (* Harvey P. Dale, Jul 13 2019 *)
Select[Range[600], NumberDigit[Sqrt[#], -1]==3&] (* Harvey P. Dale, Sep 20 2023 *)

Crossrefs

Cf. A034109.

Sequence in context: A053032 A342961 A277123 * A034109 A155070 A080821

Adjacent sequences: A034096 A034097 A034098 * A034100 A034101 A034102

Keyword

nonn,easy,base

Author

Patrick De Geest, Sep 15 1998

Status

approved