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Search: id:A046681
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A046681 Number of divisors of n and sum of 4th powers of divisors of n are relatively prime. +0
1
1, 2, 8, 9, 18, 64, 72, 128, 625, 729, 1024, 1152, 1250, 1458, 4096, 5000, 5625, 5832, 6561, 8192, 9216, 11250, 13122, 15625, 31250, 32768, 40000, 45000, 46656, 52488, 59049, 65536, 80000, 93312, 117649, 118098, 125000, 235298, 262144, 294912 (list; graph; listen)
OFFSET

1,2

COMMENT

It can be shown that this is a subset of A028982.

CROSSREFS

Cf. A028982, A046678 - A046981, A046983, A046985.

Sequence in context: A118962 A096033 A073413 this_sequence A163619 A166968 A075644

Adjacent sequences: A046678 A046679 A046680 this_sequence A046682 A046683 A046684

KEYWORD

nonn

AUTHOR

Labos Elemer (LABOS(AT)ana.sote.hu)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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