41385

Appears in sequences

• Numbers whose set of base-14 digits is {1,2}.at n=32A032934
• a(n) = n*(n+1)*(n^2+5*n+18)/24.at n=29A051744
• Expansion of (1-3*x+6*x^2-5*x^3+3*x^4-x^5)/(1-x)^6.at n=20A089830
• Triangle, read by rows, where T(n,k) equals the dot product of the vector of terms in row n-1 from T(n-1,k) to T(n-1,n-1) with the vector of terms in column k+1 from T(k+1,k+1) to T(n,k+1): T(n,k) = Sum_{j=0..n-k-1} T(n-1,j+k)*T(j+k+1,k+1) for n>k+1>0, with T(n,n) = 1 and T(n,n-1) = n (n>=1).at n=47A115085
• Column 2 of triangle A115085.at n=7A115088
• Triangular array: the fission of ((2x+1)^n) by (q(n,x)), where q(n,x)=x^n+x^(n-1)+...+x+1.at n=52A193860
• Mirror of the triangle A193860.at n=47A193861
• Number of nX5 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=21A297855
• a(n) is the number of ternary strings of length n with at least three 0's.at n=10A345954