100308

Appears in sequences

• Number of increasing columns in all 2-compositions of n.at n=9A181305
• Number of (n+1)X(n+1) 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=1A205038
• Number of (n+1)X3 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=1A205040
• T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=4A205046
• Numbers k such that the five numbers k^2+1, (k+1)^2+1, ..., (k+4)^2+1 are all semiprime.at n=8A261546