924775

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1 for n>1, a(0)=0, a(1)=1.at n=26A022311
• a(n)=(-1)^(n+1)*(5/4)*(25^n-1)*B(2n) where B(k) denotes the k-th Bernoulli number.at n=5A090644