44758

Appears in sequences

• Convolution of Catalan numbers A000108 with A020918.at n=5A045724
• Triangle related to A001700 and A000302 (powers of 4).at n=39A046658
• a(n) = K_5(n) = Sum_{k>=0} A090285(5,k)*2^k*binomial(n,k). a(n) = 2*(2*n^5+45*n^4+360*n^3+1215*n^2+1528*n+315)/15.at n=7A090297
• Numbers k such that the k-th triangular number contains only digits {0,1,6}.at n=13A119042
• a(0) = 0, thereafter, a(n) = 2^(2*n-1)*( binomial((3*n-1)/2,n) - binomial(3*n/2, n)/3 ).at n=6A244469