223696213

Appears in sequences

• a(n) = a(n-1) + 2*a(n-2), a(0)=2, a(1)=3.at n=27A048573
• a(n+1) = smallest number not containing any digits of a(n), working in base 4.at n=31A049548
• a(n) = 4*a(n-1) + 1 with a(0) = 3.at n=13A072197
• Numbers k such that A081252(m)/m^2 has a local maximum for m = k.at n=27A081254
• a(n) is the index of F(n+1) at the unique occurrence of the ordered pair of reversed consecutive terms (F(n+1),F(n)) in Stern's diatomic sequence A002487, where F(k) denotes the k-th term of the Fibonacci sequence A000045.at n=27A086893
• a(n) = 4*a(n-2) + 1 with a(1) = 0, a(2) = 3.at n=27A096773
• A generalized Jacobsthal sequence.at n=26A159290
• a(n) = 4*a(n-2)+1 with initial terms 1,3,7.at n=27A283323