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A082776
a(1) = 1, a(n) = smallest palindromic multiple of a(n-1) obtained by inserting digits anywhere in a(n-1).
10
1, 11, 121, 12221, 12233221, 122344443221, 15223441414432251, 15223441429655692414432251
OFFSET
1,2
COMMENTS
a(n)<=(10^A055642(a(n-1))+1)*a(n-1). If a(n-1) > 10 and the last digit of a(n-1) <= 4, then a(n)<=(10^(A055642(a(n-1))-1)+1)*a(n-1). - Chai Wah Wu, Mar 06 2021
CROSSREFS
KEYWORD
base,nonn,more
AUTHOR
Amarnath Murthy, Apr 19 2003
EXTENSIONS
Corrected by Ray Chandler, Oct 13 2003
a(8) from Sean A. Irvine, Apr 19 2010
STATUS
approved