A083149 - OEIS

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A083149

a(1) = 3, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

6

3, 6, 222, 444, 888, 21312, 42624, 468864, 40322304, 80644608, 802494494208, 213525880454088525312, 213525880454088738837880454088525312

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OFFSET

1,1

COMMENTS

Multiplier for a(12) is larger than 2000000000.

LINKS

Table of n, a(n) for n=1..13.

P. De Geest, WONplate 36

CROSSREFS

Cf. A083150, A068665, A083147, A083151, A083153, A083155.

Sequence in context: A309258 A163423 A291126 * A348361 A290368 A068375

Adjacent sequences: A083146 A083147 A083148 * A083150 A083151 A083152

KEYWORD

nonn,base,more

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

EXTENSIONS

More terms from Patrick De Geest, Jun 05 2003

a(13) from Giovanni Resta, Sep 22 2019

STATUS

approved