20616

Appears in sequences

• Aliquot sequence starting at 552.at n=8A014360
• Number of 5-ary rooted trees with n nodes and height exactly 4.at n=20A036635
• a(n) = n * Sum_{d|n} (binomial(n,d) / gcd(n,d)).at n=11A105863
• Number of (n+1)X(2+1) 0..5 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10, and no two adjacent values equal.at n=2A233952
• Number of (n+1)X(3+1) 0..5 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10, and no two adjacent values equal.at n=1A233953
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10 (10 maximizes T(1,1)), and no two adjacent values equal.at n=7A233958
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10 (10 maximizes T(1,1)), and no two adjacent values equal.at n=8A233958
• Expansion of 1 / (chi(-x) * chi(-x^3)) in powers of x where chi() is a Ramanujan theta function.at n=50A328798