A115681 Brilliant numbers (A078972) whose digit reversal is the product of 2 palindromes greater than 1.

4, 6, 9, 21, 121, 253, 407, 451, 559, 583, 667, 671, 803, 869, 2173, 2537, 5063, 5183, 5893, 10201, 13231, 15251, 16171, 18281, 19291, 22523, 22733, 24743, 25283, 26563, 27383, 28583, 28783, 31613, 35653, 37673, 38683, 40567, 45349, 46217

Offset: 1

Author

Giovanni Resta, Jan 31 2006

Keywords

• nonn
• base

Examples

			22523=101*223 is brilliant and 32522=2*16261.
		

Crossrefs

Cf. A078972, A115683.