Bi-unitary deficient-perfect numbers: bi-unitary deficient numbers k for such that 2*k - bsigma(k) is a bi-unitary divisor of k, where bsigma(k) is the sum of bi-unitary divisors of k (A188999).
A303358
Bi-unitary deficient-perfect numbers: bi-unitary deficient numbers k for such that 2*k - bsigma(k) is a bi-unitary divisor of k, where bsigma(k) is the sum of bi-unitary divisors of k (A188999).
Terms
- a(0) =1a(1) =2a(2) =8a(3) =10a(4) =12a(5) =32a(6) =112a(7) =128a(8) =136a(9) =144a(10) =152a(11) =184a(12) =512a(13) =1088a(14) =2048a(15) =2144a(16) =2272a(17) =2528a(18) =2736a(19) =3248a(20) =3312a(21) =4592a(22) =7936a(23) =8192a(24) =9800a(25) =11800a(26) =17176a(27) =18632a(28) =18904a(29) =22984
External references
- oeis: A303358