3221225441

Appears in sequences

• a(n) = 2^n + 2^(n-1) - n.at n=30A123720
• Row sums of triangle A133094.at n=30A133095
• a(0) = 1, a(n) = 3*2^(n-1) - n for n>0.at n=31A179744
• a(n) = 192*2^n - 31 (n>=1).at n=23A304385