19964

Appears in sequences

• Theta series of lattice Kappa_7.at n=18A015236
• Number of partitions of 5n such that cn(0,5) < cn(1,5) = cn(4,5) <= cn(2,5) = cn(3,5).at n=12A036888
• a(n) = 2^n + 5^n + 7^n.at n=5A074538
• Records in A064844.at n=22A135987
• Numerator of A166100(A166101(n))/A166102(n).at n=32A166272
• Maximum number of rational points on a smooth absolutely irreducible projective curve of genus 1 over the field F_3^n.at n=8A169877
• Number of binary arrays of length n+13 with fewer than 7 ones in any length 14 subsequence (=less than 50% duty cycle).at n=2A213117
• T(n,k)=Number of binary arrays of length n+2*k-1 with fewer than k ones in any length 2k subsequence (=less than 50% duty cycle).at n=38A213118
• Number of binary arrays of length 2*n+2 with fewer than n ones in any length 2n subsequence (=less than 50% duty cycle).at n=6A213120
• Number of partitions p of n such that max(p) - 2*min(p) is a part of p.at n=44A238626
• Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7.at n=5A251917
• Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7.at n=1A251921
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7.at n=22A251923
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7.at n=26A251923
• Concatenation of n-th prime and n-th nonprime.at n=45A253910
• White to move: King and Queen vs. King: Number of positions with mate in n.at n=3A274684
• Even composites m such that A003499(m)==6 (mod m).at n=13A338311
• E.g.f.: Product_{k>=1} 1 / (1 - exp(x) * x^k / k!).at n=6A347005
• a(n) = number of "lonesum" 2 X 2 X n tensors.at n=5A370962