733008800427
domain: N
Appears in sequences
- a(n) = (2^n+1)*(2^n+2)/6.at n=21A007581
- Number of set partitions of length <= 4; sum of first 4 columns of triangle of Stirling numbers of 2nd kind; dimension of space of symmetric polynomials in 4 noncommuting variables.at n=22A124303
- Number of n X 2 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.at n=10A208402