A007927 Some nontrivial permutation of digits is a factorial number.

10, 20, 42, 60, 100, 102, 200, 201, 204, 207, 210, 240, 270, 402, 420, 600, 702, 1000, 1002, 1020, 1200, 2000, 2001, 2004, 2007, 2010, 2040, 2070, 2100, 2400, 2700, 4002, 4005, 4020, 4050, 4200, 4500, 5004, 5400, 6000, 7002, 7020, 7200

Offset: 1

Author

R. Muller

Keywords

• nonn
• base

Links

• F. Smarandache, Only Problems, Not Solutions!