Number of degree-n permutations of order a power of 3.

A218003

Number of degree-n permutations of order a power of 3.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =9a(5) =21a(6) =81a(7) =351a(8) =1233a(9) =46089a(10) =434241a(11) =2359611a(12) =27387801a(13) =264333213a(14) =1722161169a(15) =16514298711a(16) =163094452641

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