1835009

Appears in sequences

• a(0) = 8; for n>0, a(n) = 2*a(n-1) - 1.at n=18A083686
• a(n) = 7*4^n+1.at n=9A199207
• a(n) = 7*8^n+1.at n=6A199555
• a(n) = 7*2^n + (-1)^n.at n=18A321483