Numbers k such that Omega(m*(m+1)) < Omega(k*(k+1)) for all m < k, where Omega(k) is the number of prime divisors of k counted with multiplicity (A001222).
A363847
Numbers k such that Omega(m*(m+1)) < Omega(k*(k+1)) for all m < k, where Omega(k) is the number of prime divisors of k counted with multiplicity (A001222).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =7a(4) =8a(5) =15a(6) =32a(7) =63a(8) =224a(9) =255a(10) =512a(11) =3968a(12) =4095a(13) =14336a(14) =32768a(15) =65535a(16) =180224a(17) =262143a(18) =1048575a(19) =14680064a(20) =16777215a(21) =134217728a(22) =268435455a(23) =1073741823a(24) =8589934592a(25) =12884901887a(26) =34359738368a(27) =68719476735
External references
- oeis: A363847