238923

Appears in sequences

• a(1) = 1; a(n+1) = sum of terms in continued fraction for sum of continued fractions, [a(n); a(n-1), a(n-2),...,a(1)] and [0; a(n), a(n-1), a(n-2),...,a(1)].at n=21A058083
• a(n) = Sum_{i=0..n} digsum_9(i)^4, where digsum_9(i) = A053830(i).at n=53A231687
• a(n) = Sum_{i=0..n} digsum(i)^4, where digsum(i) = A007953(i).at n=53A231689