63645
domain: N
Appears in sequences
- an=n-th smallest integer m=p1*p2*p3, product of 3 odd primes such that d+2m/d are all primes for d dividing 2m.at n=23A128278
- Number of arrangements of n+3 numbers in 0..4 with each number being the sum mod 5 of three others.at n=3A183887
- T(n,k)=Number of arrangements of n+3 numbers in 0..k with each number being the sum mod (k+1) of three others.at n=24A183892