A034104 Fractional part of square root of a(n) starts with digit 8.

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

Links

Table of n, a(n) for n=1..54.

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

Adjacent sequences: A034101 A034102 A034103 * A034105 A034106 A034107

Keyword

nonn,easy,base

Author

Patrick De Geest, Sep 15 1998

Status

approved