Decomposition of A091067
Numbers a(n) such that odd part of a(n) is of form 4k+3.
Decomposition of A091072
Numbers a(n) such that odd part of a(n) is of form 4k+1. The bit to the left of least significant bit of a(n) is unset.
Decomposition of Primitive abundant numbers
Primitive abundant numbers: abundant numbers (A005101) having no abundant proper divisor.
Decomposition of A091300
Nonprimes of form 6k+1.
Decomposition of A091301
Primes of the form p*q + p - q, where p and q are primes.
Decomposition of A091998
Numbers that are congruent to {1, 11} mod 12.
Decomposition of A092022
Numbers n such that 16n + 3 is prime.
Decomposition of Harmonic primes
Harmonic primes.
Decomposition of A092192
Semiprimes that are the sum of two successive semiprimes.
Decomposition of A092207
Numbers n such that n and n+2 are semiprimes.









