Numbers k that are the products of two distinct primes such that 2*k-1, 4*k-3, 8*k-7, 16*k-15, 32*k-31 and 64*k-63 are also products of two distinct primes.
A177215
Numbers k that are the products of two distinct primes such that 2*k-1, 4*k-3, 8*k-7, 16*k-15, 32*k-31 and 64*k-63 are also products of two distinct primes.
Terms
- a(0) =694a(1) =3403a(2) =4714a(3) =5062a(4) =5353a(5) =7495a(6) =11293a(7) =12139a(8) =13798a(9) =14191a(10) =19735a(11) =21439a(12) =22585a(13) =24277a(14) =25009a(15) =25399a(16) =26734a(17) =26899a(18) =31261a(19) =32959a(20) =35299a(21) =36199a(22) =44869a(23) =48949a(24) =49471a(25) =50797a(26) =58003a(27) =60181a(28) =62521a(29) =70759
External references
- oeis: A177215