171860

Appears in sequences

• Number of (n+1)X2 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=5A204725
• Number of (n+1)X7 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=0A204730
• T(n,k) = Number of (n+1) X (k+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=15A204732
• T(n,k) = Number of (n+1) X (k+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=20A204732
• Numbers k such that the concatenation in increasing order of their prime factors, with multiplicity, is congruent to 1 (mod k).at n=12A349705