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A225775
Numbers k such that antisigma(x) = antisigma(x+1) = k has solution.
2
0, 9, 36844389, 129894940, 446591224981504
OFFSET
1,2
COMMENTS
Antisigma(n) = A024816(n) = the sum of the nondivisors of n that are between 1 and n.
Conjecture: also numbers k such that antisigma(n) = antisigma(m) = k has solution for distinct numbers n and m. - Jaroslav Krizek, Nov 10 2013
EXAMPLE
36844389 is in the sequence because 36844389 = antisigma(8585) = antisigma(8586).
CROSSREFS
Cf. A067816 (numbers n such that antisigma(n) = antisigma(n+1)).
Sequence in context: A229687 A029983 A358814 * A154110 A235400 A028446
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Jul 26 2013
STATUS
approved