47000
domain: N
Appears in sequences
- Numbers whose square has more than 2/3 of its digits the same.at n=28A060813
- Numbers k such that k and k^2 use only the digits 0, 2, 4, 7 and 9.at n=29A136907
- Boolean-Chain Quilt Numbers: Square table of the number of ASM quilts of type B_n X C_k read down antidiagonals, where B_n is the Boolean lattice on an n-set and C_k is a chain of length k with k+1 elements.at n=13A374820
- Antichain-Boolean Quilt Numbers: Square table of the number of ASM quilts of type B_n x A_2(j) read down antidiagonals, where B_n is the Boolean lattice and A_2(j) is the rank 2 poset with a unique minimal and maximal element and j atoms.at n=9A374821
- Triangle read by rows, with T(n,k) giving the number of n X n Boolean matrices with exactly k ones having at least one zero row and at least one zero column.at n=39A392483