44803

Appears in sequences

• Quadrinomial coefficients.at n=10A005725
• Interprimes which are of the form s*prime, s=11.at n=19A075286
• Triangle T(n,k) with the coefficient of [x^k] of the series (1-x)^(n+1)* Sum_{j>=0} binomial(n + 4*j, 4*j)*x^j in row n, column k.at n=44A178619
• Number of compositions of n into ceiling(n/2) parts with 1 <= each part <=4.at n=19A214002
• G.f. satisfies A(x) = 1 + x*A(x)^3 + x^5*A(x)^13.at n=8A216493
• G.f. satisfies A(x) = 1 + x*A(x)^3/(1 - x^4*A(x)^10).at n=8A216494
• Number of nX4 0..3 arrays with rows unimodal and columns nondecreasing.at n=2A223983
• T(n,k)=Number of nXk 0..3 arrays with rows unimodal and columns nondecreasing.at n=17A223987
• Number of 3Xn 0..3 arrays with rows unimodal and columns nondecreasing.at n=3A223988
• Numbers whose septenary, octal and nonary representations are prime when read in decimal.at n=32A281252
• Number of triples (i,j,k) such that i+j+k > 0 with -n <= i,j,k <= n.at n=22A302302
• Irregular triangle read by rows: the right-hand side of the triangle in A349813.at n=75A349814