27908
domain: N
Appears in sequences
- Partial sums of rows of A047884. Young Tableaux by height.at n=59A049400
- Number of Young tableaux of height <= 5.at n=11A049401
- a(n) = denominator of the continued fraction [1; 2^2, 3^3, ..., n^n].at n=3A061454
- Number of slanted n X 4 (i=1..n) X (j=i..4+i-1) 1..4 arrays with all 1s connected, all 2s connected, all 3s connected, all 4s connected, 1 in the upper left corner, 2 in the upper right corner, 3 in the lower left corner, 4 in the lower right corner, and with no element having more than 3 neighbors with the same value.at n=9A165381
- Ulam numbers k such that 4*k and 16*k are also Ulam numbers.at n=38A287634
- Partitions with designated summands in which no parts are multiples of 3.at n=31A293569
- Number of conjugacy classes of subgroups of the group GL(2, Z_n) of invertible 2 X 2 matrices mod n.at n=15A364921
- Expansion of (1/x) * Series_Reversion( x * (1-x)^3 / (1-x+x^3)^2 ).at n=9A369231
- Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 6.at n=8A383078