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A138834 Bisection of even superperfect numbers A061652. 2
2, 16, 4096, 262144, 1152921504606846976, 81129638414606681695789005144064 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Also, bisection of superperfect numbers A019279, if there are no odd superperfect numbers.
LINKS
FORMULA
a(n) = A061652(2*n-1). - Jinyuan Wang, Mar 14 2020
CROSSREFS
Sequence in context: A158506 A167435 A270124 * A088321 A061301 A180962
KEYWORD
nonn
AUTHOR
Omar E. Pol, Apr 06 2008
STATUS
approved

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Last modified July 13 17:55 EDT 2024. Contains 374285 sequences. (Running on oeis4.)