80744

Appears in sequences

• Where records occur in A114183.at n=47A222194
• a(n) = Sum_{k=0..n} binomial(n,k) * (-1)^(n-k) * (2^k + 1)^k.at n=4A251183
• Number of compositions (ordered partitions) of n into an even number of triangular numbers.at n=29A339416