Numbers k such that k and k+1 are both of the form p*q^3 where p and q are distinct primes.

Terms

a(0) =135a(1) =296a(2) =375a(3) =1431a(4) =1592a(5) =3992a(6) =4023a(7) =6183a(8) =7624a(9) =8936a(10) =9368a(11) =10071a(12) =10232a(13) =10375a(14) =10984a(15) =13256a(16) =16551a(17) =16712a(18) =19143a(19) =20871a(20) =22328a(21) =22375a(22) =23031a(23) =24488a(24) =28375a(25) =28376a(26) =28647a(27) =33271a(28) =34856a(29) =35127