Original entry on oeis.org
2, 37, 2, 2, 24, 2, 11, 86, 2, 9951, 266077689, 1000000000000001
Offset: 1
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
A068665
a(1) = 3; a(n) = smallest palindromic multiple of a(n-1).
Original entry on oeis.org
3, 6, 66, 858, 6006, 66066, 858858, 222444222, 444888444, 21354645312, 21375999957312, 211643775577346112, 211432343445544343234112, 21354666687999978666645312, 211432554877887788778455234112, 211221333755564778877465557333122112
Offset: 1
-
a[1] = 3; a[n_] := a[n] = Block[{k = 2}, While[k*a[n - 1] != ToExpression[ StringReverse[ ToString[k*a[n - 1]]]], k++ ]; k*a[n - 1]]; Table[a[n], {n, 1, 16}]
nxt[n_]:=Module[{k=2},While[k*n!=IntegerReverse[k*n],k++];k*n]; NestList[ nxt,3,15] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Sep 14 2016 *)
A083147
a(1) = 1, 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.
Original entry on oeis.org
1, 2, 4, 8, 232, 464, 42224, 84448, 4053504, 44588544, 4057557504, 4053504004053504, 44588544044588544, 4057557508057557504, 401341233733484337332143104, 40130110362352332623325326301103104, 441431213985875658856578589312134144
Offset: 1
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
A083153
a(1) = 7, 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.
Original entry on oeis.org
7, 161, 1771, 161161, 1772771, 414828414, 4107216127014, 45179377397154, 410725719917527014, 210233245545545542332012, 210023222533245542335222320012, 21212345475857799775857454321212, 2100232225542478645885468742455222320012
Offset: 1
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
A083151
a(1) = 5, 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.
Original entry on oeis.org
5, 505, 5555, 505505, 5005005005, 55055055055, 50155155155105, 5464353998993534645, 541025148469303964841520145, 513016415223221833242338122322514610315, 5130164152232218845439796446446979345488122322514610315
Offset: 1
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
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.
Original entry on oeis.org
9, 171, 1881, 171171, 1882881, 306909603, 11355655311, 1033364633301, 1034397997934301, 10241574577547514201, 10231343244544544234313201, 112544775689989986577445211, 1023144555797698967975554413201, 102221350448336861989168633844053122201, 11233003103852144358833233885344125830130033211
Offset: 1
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003
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