a(n) is the minimal odd odious k>1, such that k^i, i=2,...,n, all are evil, and a(n)=0, if there is no such k.

A230498

a(n) is the minimal odd odious k>1, such that k^i, i=2,...,n, all are evil, and a(n)=0, if there is no such k.

Terms

    a(0) =13a(1) =21a(2) =21a(3) =47a(4) =265a(5) =607a(6) =883a(7) =883a(8) =883a(9) =883a(10) =10865a(11) =10865a(12) =58241a(13) =58241a(14) =58241a(15) =75781a(16) =367815a(17) =766165a(18) =2931371a(19) =5288671a(20) =5288671a(21) =14838843a(22) =14838843a(23) =14838843a(24) =33417397a(25) =737812313a(26) =2774333869a(27) =3513898753a(28) =3513898753a(29) =3513898753

External references