A280001 Semiprimes in A157752.

447914738, 5726413266646343, 52858423703753671390658, 932521283899305953765183, 10051725785115560870423121293, 55198768937767543284962316423143, 668989466176542077234982864850425170016849023265359023043369141048723978

Offset: 1

Author

Zak Seidov, Feb 21 2017

Keywords

• nonn
• more

Comments

Semiprimes that are the smallest integers m == p_i (mod p_(i+1)), i=1..n; p_i = i-th prime, for some n's..

Note that these are not the smallest semiprimes m == p_i (mod p_(i+1)), i=1..n.

Instead for n=9,13,17,18,20,22,41, a(n) is the smallest semiprime for the given n.

Crossrefs

Cf. A157752.