39810
domain: N
Appears in sequences
- Powers of fifth root of 10 rounded down.at n=23A018141
- Number of partitions of n in which the number of parts divides n.at n=54A067538
- Largest number whose 5th power has n digits.at n=22A114323
- Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 8).at n=35A212367
- Convolution of triangular numbers with every third number of Narayana's Cows sequence.at n=9A350498
- Number of integer partitions of n with integer mean and integer median.at n=54A359906
- Number of odd-length integer partitions of n with integer mean.at n=55A361656
- a(n) = Sum_{k=0..n} 3^(n-k) * binomial(n,k) * binomial(2*n+1,k).at n=5A388133