190962

Appears in sequences

• Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.at n=39A120361
• Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=6, k=0 and l=-2.at n=8A177168
• Number of bases to which terms of A141768 are strong pseudoprimes.at n=29A195328
• a(n) = n*T(n), where T(n) = A000073(n) = n-th tribonacci number.at n=18A337281