401861

Properties

Appears in sequences

• a(1)=1, a(2)=2, a(n+2)=(a(n+1)+a(n))/2 if a(n+1)+a(n) is even, a(n+2)=(3*(a(n+1)+a(n))+1)/2 otherwise.at n=31A069162
• Number of intermediate configurations needed to be stored to calculate the number of ways in which a 9 X n grid can be tiled with triominoes.at n=18A215827
• Primes of the form 5*p^2+5*p+1, where p is a prime.at n=28A225874
• Prime numbersat n=33989