50331623

Appears in sequences

• a(n) = 2^n + 2^(n-1) - n.at n=24A123720
• Row sums of triangle A133094.at n=24A133095
• a(0) = 1, a(n) = 3*2^(n-1) - n for n>0.at n=25A179744
• a(1) = 23, a(2) = 71, a(n) = 3*a(n-1) - 2*a(n-2) for n>2.at n=20A248877