A055159 n has distinct digits in ascending order and n=a-b where a has the digits of n in descending order and b has the digits of n in another order (a and b perhaps with extra zeros).

459, 1467, 1245789, 123456789, 123456789

Offset: 0

Author

Henry Bottomley, Apr 27 2000

Keywords

• fini
• full
• base
• nonn

Examples

			459=954-495
		

References

• Denis Borris, Ken Duisenberg's Puzzle of the Week, April 20, 2000

Links

• Source

Crossrefs

Cf. A055162.

Formula

a(n)=A055158(n)-A055157(n)