37200

Appears in sequences

• Expansion of e.g.f.: exp(2*x)/(1-x).at n=7A010842
• Square array of numbers related to the incomplete gamma function, read by antidiagonals.at n=52A080955
• Transposed version of A080955: T(n,k) = A080955(k,n), n>=0, k>=-1.at n=62A089258
• Numbers k such that sigma(k) divides k^2.at n=28A090777
• Column 6 of triangle A091602.at n=48A091609
• a(n) = n^2*(n+1)*(2*n+1)/3.at n=14A098077
• Matrix inverse of A103247, so that T(n,k) = C(n,k)*A010842(n-k), read by rows.at n=28A107056
• Values of k such that k - 1 and k + 1 are twin primes and 3*k^9 - 1 and 3*k^9 + 1 are also twin primes.at n=2A108134
• Array read by antidiagonals, a(n,k) = gamma(n+1,k)*e^k, where gamma(n,k) is the upper incomplete gamma function and e is the exponential constant 2.71828...at n=47A134558
• Terms of A061047 ending in 0.at n=37A146950
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having exactly k odd fixed points (0 <= k <= ceiling(n/2)).at n=38A161133
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having exactly k even fixed points (0 <= k <= floor(n/2)).at n=33A161134
• Number of (w,x,y,z) with all terms in {1,...,n} and w>2x and y>3z.at n=32A212518
• Numbers such that the product of divisors of n is divisible by the product of divisors of sigma(n).at n=1A219363
• a(n) = n*(7*n^2 + 15*n + 8)/6.at n=31A245301
• Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock sum of the four sums of the central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.at n=3A254561
• Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the four sums of the central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.at n=0A254564
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the four sums of the central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.at n=6A254568
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the four sums of the central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.at n=9A254568
• Number of permutations of [n] avoiding the generalized patterns 1(k+2)-(u_1+1)-...-(u_k+1) for all permutations u of [k].at n=85A263791