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A034103
Fractional part of square root of a(n) starts with digit 7.
1
3, 14, 23, 33, 45, 46, 60, 76, 77, 95, 96, 115, 116, 137, 138, 139, 162, 163, 188, 189, 190, 217, 218, 219, 247, 248, 249, 279, 280, 281, 282, 314, 315, 316, 350, 351, 352, 353, 389, 390, 391, 392, 429, 430, 431, 432, 471, 472, 473, 474, 475, 516, 517, 518
OFFSET
1,1
PROG
(PARI) for(k=1, 520, my(s=sqrt(k), d=floor(10*(s-floor(s)))); if(d==7, print1(k, ", "))) \\ Hugo Pfoertner, Aug 05 2020
CROSSREFS
Cf. A034113.
Sequence in context: A024473 A024598 A019001 * A034113 A099853 A019002
KEYWORD
nonn,easy,base
AUTHOR
Patrick De Geest, Sep 15 1998
EXTENSIONS
a(52) corrected by Sean A. Irvine, Aug 03 2020
STATUS
approved