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A030073
Numbers k such that k^2 is palindromic in base 15.
11
0, 1, 2, 3, 4, 8, 12, 16, 19, 32, 39, 64, 76, 128, 144, 226, 241, 256, 271, 311, 452, 467, 478, 482, 576, 715, 904, 964, 1024, 1748, 1808, 1868, 2304, 2652, 2860, 3376, 3401, 3616, 3856, 4639, 6752, 6992, 7172, 8649, 10715, 13504, 13604
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OFFSET
1,3
LINKS
Seiichi Manyama,
Table of n, a(n) for n = 1..100
Patrick De Geest,
Palindromic Squares in bases 2 to 17
MATHEMATICA
p15Q[n_]:=Module[{id15=IntegerDigits[n^2, 15]}, id15==Reverse[id15]]; Select[ Range[0, 14000], p15Q] (*
Harvey P. Dale
, Jun 03 2020 *)
CROSSREFS
Numbers k such that k^2 is palindromic in base b:
A003166
(b=2),
A029984
(b=3),
A029986
(b=4),
A029988
(b=5),
A029990
(b=6),
A029992
(b=7),
A029805
(b=8),
A029994
(b=9),
A002778
(b=10),
A029996
(b=11),
A029737
(b=12),
A029998
(b=13),
A030072
(b=14), this sequence (b=15),
A029733
(b=16),
A118651
(b=17).
Sequence in context:
A344301
A032939
A366201
*
A392473
A115271
A189375
Adjacent sequences:
A030070
A030071
A030072
*
A030074
A030075
A030076
KEYWORD
base
,
nonn
AUTHOR
Patrick De Geest
STATUS
approved
