22874

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 69.at n=21A020408
• G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 5 generated by (1,2,3,4,5).at n=10A036727
• Consider all integer triples (i,j,k), j >= k > 0, with binomial(i+2,3) = j^3 + k^3, ordered by increasing i; sequence gives i values.at n=13A054205
• Number of (n+2)X(2+2) 0..1 arrays with nondecreasing maximum minus minimum of every three consecutive values in every row and column.at n=1A250821
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with nondecreasing maximum minus minimum of every three consecutive values in every row and column.at n=4A250826
• Number of (n+3)X(1+3) 0..1 arrays with each row and column not divisible by 15, read as a binary number with top and left being the most significant bits.at n=0A263212
• T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row and column not divisible by 15, read as a binary number with top and left being the most significant bits.at n=0A263215
• Number of {0,1} n X n matrices with no rows or columns in which all entries are the same.at n=4A283624
• Triangle T(n,m) read by rows: number of n X m binary matrices with no rows or columns in which all entries are the same (n >= 1, 1 <= m <= n).at n=9A283654