A055161 n has 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, 995544, 766431, 76664331, 98754210, 987654321, 999555444, 7666643331, 9876543210, 9987542100, 98766543321, 766666433331, 987665433210, 998765432100, 999875421000, 999955554444, 9876665433321

Offset: 0

Author

Henry Bottomley, Apr 27 2000

Keywords

• base
• nonn

Examples

			954=495+459
		

References

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

Links

• Source

Crossrefs

Cf. A055158.

Formula

a(n)= A055160(n)+A055162(n)