7340031

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} A026615(n, k).at n=23A026623
• a(n) = 7*2^n - 1.at n=20A086224
• a(n) = 7*4^n-1.at n=10A198694
• Positions of records in A249695.at n=24A249715
• Number of length-n 0..2 arrays with no following elements greater than or equal to the first repeated value.at n=19A267226
• Decimal representation of the middle column of the "Rule 175" elementary cellular automaton starting with a single ON (black) cell.at n=22A267604
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 302", based on the 5-celled von Neumann neighborhood.at n=25A280840