A083870 Number of pairs (x,y) of palindromes such that n-th decimal palindrome = x*y and 1<=x<=y.

1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 2, 2, 3, 2, 4, 2, 4, 3, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 2, 3, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 2, 2, 2, 1, 4, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 4, 1, 2, 1, 3, 1, 2, 1, 4, 1, 3, 1, 1, 2, 1, 1, 2

Offset: 1

Author

Reinhard Zumkeller, May 07 2003

Keywords

• nonn
• base

Examples

			A002113(132)=3333 = 1*3333 = 3*1111 = 11*303 = 33*101, therefore
a(132)=4.
		

Crossrefs

Cf. A083867, A038548, A002113.