OFFSET
1,1
COMMENTS
If a(n) is an extremely abundant number, then it is superabundant.
LINKS
T. D. Noe, Table of n, a(n) for n = 1..156
Sadegh Nazardonyavi, Extremely abundant number
S. Nazardonyavi, S. Yakubovich, Extremely Abundant Numbers and the Riemann Hypothesis, Journal of Integer Sequences, 17 (2014), Article 14.2.8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Sadegh Nazardonyavi, Oct 27 2012
STATUS
approved