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A088780 a(1) = 9, a(n) = smallest palindromic multiple of a(n-1) obtained by inserting digits anywhere in a(n-1). 1
9, 99, 9009, 909909, 9009009009, 90099099099009, 90009090099009090009, 9000009009009009009009000009 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..8.
CROSSREFS
Cf. A082776, A082777, A082778, A082779, A082781, A082782, A082783.
Sequence in context: A078238 A080494 A077710 * A132544 A367353 A017018
Adjacent sequences: A088777 A088778 A088779 * A088781 A088782 A088783
KEYWORD
nonn,base,more
AUTHOR
Ray Chandler, Oct 26 2003
EXTENSIONS
a(8) by David Consiglio, Jr., Sep 30 2022
STATUS
approved

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Last modified May 12 23:55 EDT 2024. Contains 372497 sequences. (Running on oeis4.)