114126

Appears in sequences

• a(n) = n*(n + 1)*(3*n^2 + 3*n - 2)/8.at n=23A236770
• a(n) = Sum_{k=1..n} C(n-k, floor((n-k)/k)).at n=21A273161
• a(n) = Sum_{k=0..n} binomial(2*n,n)*binomial(n, k)*(5*k)!/((k!)^3*(2*k)!).at n=2A381165