Odd positive integers whose canonical prime factorization p_1^e_1*...*p_r^e_r satisfies that {p_1, ..., p_r, e_1, ..., e_r} is a set of 2*r consecutive integers.
A392045
Odd positive integers whose canonical prime factorization p_1^e_1*...*p_r^e_r satisfies that {p_1, ..., p_r, e_1, ..., e_r} is a set of 2*r consecutive integers.
Terms
- a(0) =9a(1) =81a(2) =625a(3) =2025a(4) =5625a(5) =15625a(6) =117649a(7) =455625a(8) =1265625a(9) =5764801a(10) =22325625a(11) =37515625a(12) =43758225a(13) =62015625a(14) =73530625a(15) =238239225a(16) =337640625a(17) =661775625a(18) =25937424601a(19) =45956640625a(20) =90075015625a(21) =246140015625a(22) =482434430625a(23) =683722265625
External references
- oeis: A392045