25741485

Appears in sequences

• a(n) = 31*binomial(2*n,n-4) + Sum_{i=1..n-4} binomial(2*n,n-4-i)*(4+i).at n=12A182025
• Denominator of Sum_{k=0..n} (2^k * (k!)^2)/(2k + 1)!.at n=11A277585
• Irregular triangle read by rows in which the n-th row lists multinomials for partitions of 4n which have only parts which are multiples of 4, in Hindenburg order.at n=22A327004
• a(n) is the denominator of Catalan-Daehee number d(n).at n=22A344850