Decomposition of A141303
Primes of the form 2*x^2+6*x*y-3*y^2 (as well as of the form 5*x^2+10*x*y+2*y^2).
Decomposition of A141304
Primes of the form -2*x^2+6*x*y+3*y^2 (as well as of the form 7*x^2+12*x*y+3*y^2).
Decomposition of A142925
Primes congruent to 1 mod 64.
Decomposition of A143164
Numbers with digitsum 13, in increasing order.
Decomposition of A145292
Composite numbers generated by the Euler polynomial x^2 + x + 41.
Decomposition of A145471
Primes p such that (5+p)/2 is prime.
Decomposition of A145490
Numbers k such that 6k+19 is prime and absolute value of 12k+1 is also prime.
Decomposition of A145749
Numbers n such that sigma(n)+phi(n)=sigma(n+1)+phi(n+1).
Decomposition of A147562
Number of "ON" cells at n-th stage in simple 2-dimensional cellular automaton.
Decomposition of A147991
Sequence S such that 1 is in S and if x is in S, then 3x-1 and 3x+1 are in S.









