117440511

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} A026615(n, k).at n=27A026623
• a(n) = 7*2^n - 1.at n=24A086224
• Smallest semiprime with Hamming weight n (i.e., smallest semiprime with exactly n ones when written in binary), or -1 if no such number exists.at n=25A102029
• a(n) = 7*4^n-1.at n=12A198694
• a(n) = 7*8^n - 1.at n=8A198855
• Positions of records in A249695.at n=28A249715
• Decimal representation of the middle column of the "Rule 175" elementary cellular automaton starting with a single ON (black) cell.at n=26A267604
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 437", based on the 5-celled von Neumann neighborhood.at n=27A288299