Sphenic numbers k such that floor(log(k)/log(lpf(k))) = 1+floor(log(k)/log(p)) for all primes p | k such that p > lpf(k), where lpf = A020639(k).

A383177

Sphenic numbers k such that floor(log(k)/log(lpf(k))) = 1+floor(log(k)/log(p)) for all primes p | k such that p > lpf(k), where lpf = A020639(k).

Terms

    a(0) =1001a(1) =1309a(2) =1547a(3) =1729a(4) =2093a(5) =2261a(6) =3553a(7) =4199a(8) =4301a(9) =4807a(10) =5681a(11) =6061a(12) =6479a(13) =7337a(14) =7843a(15) =8671a(16) =9269a(17) =9361a(18) =9889a(19) =10373a(20) =10879a(21) =11063a(22) =11339a(23) =11687a(24) =11803a(25) =11891a(26) =12121a(27) =12617a(28) =13079a(29) =13717

External references