[seqfan] definition of A216677 (sq's dividing prod. of divs of n)

[mathar]

Can anybody decipher what the actual definition of 
http://oeis.org/A216677 might be? This counts squares
which divide the product of all divisors of n (sounds
trivial) but seems to reject squares which miss
some sort of criterion (to be defined). The criterion is
probably related to a request that all squares need to have
a set of divisors which encompasses at least the prime divisors of n.

Some email exchange with the author did not yield much progress
on the theme.

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Richard J. Mathar               phone (+49) (0) 6221 528 382
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