A097222 Numbers n such that for some k there exist k numbers a1,a2, ...,ak that concatenations of them is equal to n and sum of them is equal to Pi(n).

15, 27, 39, 130, 131, 252, 370, 489, 1195, 2345, 3484, 4619, 5752, 6879

Offset

1,1

Links

Table of n, a(n) for n=1..14.

Example

9642459 is in the sequence because Pi(9642459)=9+642459
in fact a1=9 & a2=642459.

Crossrefs

Cf. A097220, A097221.

Sequence in context: A349175 A145195 A096022 * A004069 A110978 A274433

Adjacent sequences: A097219 A097220 A097221 * A097223 A097224 A097225

Keyword

nonn,base

Author

Farideh Firoozbakht, Aug 05 2004

Status

approved