

A138867


First two digits of nth even superperfect number A061652(n).


4



2, 4, 16, 64, 40, 65, 26, 10, 11, 30, 81, 85, 34, 26, 52, 73, 22, 12, 95, 14, 23, 17, 14, 21, 22, 20, 42, 26, 26, 25, 37
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OFFSET

1,1


COMMENTS

Also, first two digits of nth superperfect number A019279(n), if there are no odd superperfect numbers.


LINKS

Table of n, a(n) for n=1..31.


CROSSREFS

Cf. A019279, A061652, A138862, A138868, A138869, A138873.
Sequence in context: A005027 A153969 A153966 * A138868 A138871 A001901
Adjacent sequences: A138864 A138865 A138866 * A138868 A138869 A138870


KEYWORD

base,more,nonn


AUTHOR

Omar E. Pol, Apr 02 2008


EXTENSIONS

Terms beyond a(12) from R. J. Mathar, Feb 05 2010


STATUS

approved



