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A034104
Fractional part of square root of a(n) starts with digit 8.
1
8, 15, 24, 34, 47, 61, 62, 78, 79, 97, 98, 117, 118, 140, 141, 164, 165, 166, 191, 192, 193, 220, 221, 222, 250, 251, 252, 283, 284, 285, 317, 318, 319, 320, 354, 355, 356, 357, 393, 394, 395, 396, 433, 434, 435, 436, 476, 477, 478, 479, 520, 521, 522, 523
OFFSET
1,1
PROG
(Python)
from math import sqrt
def ok(n): r = sqrt(n); return int(10*(r-int(r))) == 8
print(list(filter(ok, range(524)))) # Michael S. Branicky, Aug 15 2021
CROSSREFS
Cf. A034114.
Sequence in context: A296546 A167986 A015727 * A034114 A069826 A129076
KEYWORD
nonn,easy,base
AUTHOR
Patrick De Geest, Sep 15 1998
STATUS
approved