[seqfan] sparse odd entries

David Newman davidsnewman at gmail.com
Thu Apr 13 21:25:29 CEST 2017

I'm looking for sequences which have few entries which are odd.
A117958 which has a(n) congruent to 1 (mod 2) only for n=m squared,
and m not divisible by 3 is an example of what I'm looking for. Is
there some easy way to search for such sequences?

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