A083156 -id:A083156 - cp's OEIS frontend

A083155 a(1) = 9, 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.

9, 171, 1881, 171171, 1882881, 306909603, 11355655311, 1033364633301, 1034397997934301, 10241574577547514201, 10231343244544544234313201, 112544775689989986577445211, 1023144555797698967975554413201, 102221350448336861989168633844053122201, 11233003103852144358833233885344125830130033211

Offset: 1

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

base
nonn

Variant of A068668. [From R. J. Mathar, Dec 15 2008]

P. De Geest, WONplate 36

Cf. A083156, A068668, A083153, A083151, A083149, A083147.

Corrected and extended by Patrick De Geest, Jun 05 2003

a(14)-a(15) from Giovanni Resta, Sep 25 2019

cp's OEIS Frontend

A083155 a(1) = 9, 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.

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