54760

Appears in sequences

• Expansion of 1/((1-x)*(1+x+2*x^2+x^3)).at n=40A077913
• Diagonal sums of generalized Narayana triangle A180957.at n=20A180958
• Numbers equal to the sum of the prime factors, with multiplicity, of the previous and of the following k numbers, for some k.at n=4A287923
• a(n) = 108*n^2 - 104*n + 20 (n>=1).at n=22A304835
• a(n) = T(n, 3), where T(n, k) = Sum_{i=0..n} i^k * binomial(n, i) * (1/2)^(n-k).at n=37A366151