942649

Appears in sequences

• a(n) = Sum_{k=0..6} binomial(n,k).at n=31A008859
• a(n) = A066158(n)-2 with a(0)=1.at n=12A192074
• a(n) = Sum_{k=0..n} binomial(5*n+1,k).at n=6A386812