A131983 Records in A106708.

0, 2, 23, 24, 25, 2346, 2369, 24510, 2346812, 23561015, 234691218, 23468121624, 234561012152030, 234671214212842, 235691015183045, 2345681012152024304060, 2346781214212428425684, 23456910121518203036456090

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Prog

(PARI) {map(n) = local(d); d=divisors(n); if(#d<3, 0, d[1]=""; eval(concat(vecextract(d, concat("..", #d-1)))))} {m=200; r=-1; for(n=1, m, if(r<(a=map(n)), r=a; print1(r, ", ")))}

Crossrefs

Cf. A106708, A131984 (where records occur).

Sequence in context: A242037 A233692 A084323 * A153718 A105813 A086557

Adjacent sequences: A131980 A131981 A131982 * A131984 A131985 A131986

Keyword

nonn,base

Author

Klaus Brockhaus, Aug 05 2007

Status

approved