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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). +0
4
954, 7641, 98754210, 987654321, 9876543210 (list; graph; listen)
OFFSET

0,1

REFERENCES

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

LINKS

Source

FORMULA

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

EXAMPLE

954=495+459

CROSSREFS

Cf. A055161.

Sequence in context: A073500 A121969 A055161 this_sequence A076528 A031903 A108903

Adjacent sequences: A055155 A055156 A055157 this_sequence A055159 A055160 A055161

KEYWORD

fini,full,base,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Apr 27 2000

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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