34545

Appears in sequences

• Total number of parts in all partitions of n. Also, sum of largest parts of all partitions of n.at n=28A006128
• Least area/6 of primitive Pythagorean triangles with even leg 4n.at n=46A096898
• a(n) = (2*n+1)*(2*n+3)*(2*n+5)/3.at n=22A162540
• Number of (n+1)X2 0..2 matrices with each 2X2 permanent equal.at n=5A225020
• Number of (n+1)X7 0..2 matrices with each 2X2 permanent equal.at n=0A225025
• T(n,k) is the number of (n+1) X (k+1) 0..2 matrices with each 2 X 2 permanent equal.at n=15A225027
• T(n,k) is the number of (n+1) X (k+1) 0..2 matrices with each 2 X 2 permanent equal.at n=20A225027
• 60-gonal (hexacontagonal) numbers: a(n) = n(29n - 28).at n=35A249911
• a(n) = (1/3)*(Lucas(3*n) - Lucas(n)).at n=7A273622
• Number of 2Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=13A302164
• Perimeters of more than one primitive 120-degree integer triangle.at n=27A350047