183251937962
domain: N
Appears in sequences
- a(n) = (8^n + 2*(-1)^n)/3.at n=13A007613
- a(n) = (2/3)*(4^n-1).at n=19A020988
- Smallest numbers having in binary representation exactly n maximal groups of consecutive zeros.at n=19A087120
- a(n) = J(n+1) mod J(n), J(n)=A001045(n).at n=39A112691
- a(n) = -1/6 + (-1)^n/2 + 2*4^n/3.at n=19A140322
- Decimal representation of the n-th iteration of the "Rule 77" elementary cellular automaton starting with a single ON (black) cell.at n=19A266873
- a(n) = Sum_{k=0..n} binomial(2*n+1,3*k).at n=19A387868