A082780 a(1) = 5, a(n) = smallest palindromic multiple of a(n-1) obtained by inserting digits anywhere in a(n-1).

5, 55, 5005, 505505, 5005005005, 50055055055005, 50005050055005050005, 5000005005005005005005000005, 50000050055050055055055005055005000005

Offset: 1

Author

Amarnath Murthy, Apr 19 2003

Keywords

• base
• more
• nonn

Crossrefs

Cf. A082776, A082777, A082778, A082779, A082781, A082782, A082783.

Extensions

Corrected by Ray Chandler, Oct 13 2003

a(8)-a(9) from Sean A. Irvine, Apr 19 2010