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A069501
a(1) = 9; a(n) = smallest multiple of a(n-1) which is a palindromic square.
1
9, 12321, 102030201, 12345654321, 102234363432201, 10022014302620341022001, 10002000320024001610042002300020001
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OFFSET
0,1
LINKS
Table of n, a(n) for n=0..6.
P. De Geest,
Palindromic squares
CROSSREFS
Cf.
A069502
.
Sequence in context:
A321618
A055320
A271717
*
A360762
A206461
A258719
Adjacent sequences:
A069498
A069499
A069500
*
A069502
A069503
A069504
KEYWORD
nonn
,
base
,
hard
AUTHOR
Amarnath Murthy
, Mar 30 2002
EXTENSIONS
More terms from
Sascha Kurz
, Feb 07 2003
STATUS
approved
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Last modified September 14 16:47 EDT 2024. Contains 375929 sequences. (Running on oeis4.)