72225

Appears in sequences

• Numbers k such that k-4, k-2, k+2 and k+4 are prime.at n=30A173037
• Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace.at n=5A185837
• Number of (n+1)X7 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace.at n=0A185842
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace.at n=15A185845
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace.at n=20A185845
• Number of (n+1)X7 0..2 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.at n=0A187137
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.at n=15A187140
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.at n=20A187140
• Odd numbers whose square's binary reversal is also a square.at n=6A229766
• Numbers k such that (k-p)*(k+p) contains k as a substring, where p > 0 and p = A007954(k) is the product of digits of k.at n=13A334534
• Irregular triangle read by rows: T(n,k) is the number of non-isomorphic formulas in conjunctive normal form (CNF) with n variables and k distinct nonempty clauses up to permutations of the variables and clauses, 0 <= k < 3^n.at n=44A380610