a(0) = 1, a(1) = 7; for n>=2 a(n) is the number of degree-n monic reducible polynomials over GF(7), i.e., a(n) = 7^n - A001693(n).

A058822

a(0) = 1, a(1) = 7; for n>=2 a(n) is the number of degree-n monic reducible polynomials over GF(7), i.e., a(n) = 7^n - A001693(n).

Terms

    a(0) =1a(1) =7a(2) =28a(3) =231a(4) =1813a(5) =13447a(6) =98105a(7) =705895a(8) =5044501a(9) =35869911a(10) =254229409a(11) =1797569767a(12) =12687856601a(13) =89436009607a(14) =629778626473

External references