A111646 Subtracted divisor in admirable numbers.

2, 1, 6, 6, 5, 6, 6, 4, 6, 2, 6, 28, 2, 6, 1, 6, 60, 6, 28, 6, 6, 6, 28, 39, 6, 6, 90, 6, 28, 6, 6, 28, 6, 4, 6, 6, 6, 1, 6, 28, 6, 28, 6, 6, 6, 6, 6, 28, 1, 6, 336, 6, 6, 6, 28, 6, 6, 4, 28, 6, 6, 6, 15, 6, 16, 6, 28, 6, 6, 6, 6, 28, 6, 6, 6, 28, 6, 28, 6, 6, 28, 6, 6, 6, 6, 28, 496, 8, 6, 6, 6, 6

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Formula

a(n) = A033880(A111592(n))/2 = A111667(n)/2. - Amiram Eldar, Jun 22 2019

Example

a(1)=2 because 12 = 1+3+4+6-2, the 2 is subtracted. a(6)=6 because 42 = 1+2+3+7+14+21-6, the 6 is subtracted.

Crossrefs

Cf. A033880, A111592, A111667.

Sequence in context: A193561 A328349 A117965 * A363629 A342965 A371598

Adjacent sequences: A111643 A111644 A111645 * A111647 A111648 A111649

Keyword

easy,nonn

Author

Jason Earls, Aug 10 2005

Status

approved