141619

Properties

Appears in sequences

• Primes of the form 10n^2 + 9.at n=20A201711
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+2x+3y>1.at n=33A211622
• Number of (n+2)X(4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.at n=4A259948
• Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.at n=3A259949
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.at n=31A259952
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.at n=32A259952
• Number of words of length n over the alphabet {0,1,...,10} such that no two consecutive terms have distance 9.at n=5A287839
• Prime numbersat n=13147