A055158 n has distinct digits in descending order and n=a+b where a has the digits of n in another order and b has the digits of n in ascending order (perhaps with leading zeros).

954, 7641, 98754210, 987654321, 9876543210

Offset: 0

Author

Henry Bottomley, Apr 27 2000

Keywords

• fini
• full
• base
• nonn

Examples

			954=495+459
		

References

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

Links

• Source

Crossrefs

Cf. A055161.

Formula

a(n)= A055157(n)+A055159(n)