19855

Appears in sequences

• Tenth column of quintinomial coefficients.at n=6A000575
• Form array in which n-th row is obtained by expanding (1+x+x^2)^n and taking the 2nd column from the center.at n=9A014531
• Both sum of n+1 consecutive squares and sum of the immediately following n consecutive squares.at n=5A059255
• Numbers that are sums of 2 or more consecutive squares in more than 1 way.at n=26A062681
• Tenth column of trinomial coefficients.at n=6A064054
• Array read by antidiagonals: generalized ordered Bell numbers Bo(r,n).at n=31A094416
• Generalized ordered Bell numbers Bo(5,n).at n=4A094418
• Structured octagonal prism numbers.at n=18A100176
• Number of squares in the interior of the square with vertices (n,0), (0,n), (-n,0) and (0,-n) in a square (x,y)-grid.at n=30A111746
• Numbers n such that p(7n) is prime, where p(n) is the number of partitions of n.at n=30A114167
• Numbers k such that 2^k - prime(k)^2 is prime.at n=15A116999
• Numbers that are the sum of one or more consecutive squares in more than one way.at n=33A130052
• Expansion of 1/(1-x*(1-9*x)).at n=9A146078
• Triangle T(n,k) with the coefficient [x^k] of the series (1-x)^(n+1) * Sum_{j>=0} binomial(n+3*j,3*j)*x^j, in row n, column k.at n=46A178618
• Coefficient of x^n in (1+x+x^2+x^3+x^4)^n.at n=9A187925
• Triangle T(n,k), read by rows, of numbers T(n,k)=C^(4)(n,k) of combinations with repetitions from n different elements over k for each of them not more than four appearances allowed.at n=54A213743
• Irregular triangle read by rows: T(n,m) = number of lattice paths of type A^H terminating at point (n, m).at n=32A291081
• Numbers n such that psi(n) = 2*phi(n).at n=22A292390
• Numbers that can be written as the sum of four or more consecutive squares in more than one way.at n=17A307937
• Sum of the next n nonnegative integers repeated (A004526).at n=42A319007