36204

Appears in sequences

• a(n) = (n+1)*(n^2+n+2)/2; g.f.: (1 + 2*x^2) / (1 - x)^4.at n=41A006000
• Probable extension of A013704.at n=28A025495
• Triangle of Schroeder paths counted by number of diagonal steps not preceded by an east step.at n=48A108916
• Exponential Riordan array [exp(sinh(x)*exp(x)), sinh(x)*exp(x)].at n=51A154602
• Number of shortest paths from one vertex of a cube (side = n units) to farthest vertex, along the grid on 3 surfaces meeting at another vertex.at n=6A225050
• Indices of primes in the tribonacci-like sequence, A214825.at n=32A230016
• Even numbers such that the sum of the even divisors and the sum of the odd divisors are a square or a cube.at n=27A263695
• Expansion of g.f. Product_{k>=2} 1/(1-x^phi(k)).at n=24A347428
• Expansion of g.f. Product_{k>=2} 1/(1-x^phi(k)).at n=25A347428
• Numbers k such that sigma(k) = psi(k) + tau(k)^3.at n=9A390297