1577585295

Appears in sequences

• Number of partitions of { 1, 2, ..., 8n } into sets of size 8.at n=3A025040
• a(n) = (1/6)*multinomial(3*n;n,n,n).at n=7A060542
• Number of nX1 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to two or fewer horizontal or vertical neighbors.at n=22A199094
• Number of nX1 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to two or fewer horizontal or vertical neighbors.at n=23A199094
• 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=26A327004
• a(n) = Sum_{k = 0..n-1} (-1)^k*binomial(n,k)*binomial(n-1,k)^2.at n=16A361710