241639

Properties

Appears in sequences

• Length of n-th string generated by a Kolakoski(7,1) rule starting with a(1)=1.at n=15A095343
• Number of commutative semigroups of order <= n.at n=8A118100
• a(n) = a(n-1)*2 + floor(sqrt(a(n-2))).at n=18A182557
• Initial members of prime octuplets (p, p+4, p+12, p+24, p+28, p+40, p+48, p+52), where all primes are consecutive primes.at n=0A382285
• Prime numbersat n=21356