31772

Appears in sequences

• a(n) = (2*n - 5)n^2.at n=26A015240
• Catafusenes (see reference for precise definition).at n=7A045902
• Records for terms in the continued fraction of Soldner's constant.at n=13A099804
• Number of n X 2 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.at n=7A199641
• T(n,k)=Number of nXk 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.at n=37A199647
• T(n,k)=Number of nXk 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.at n=43A199647
• Number of (n+2)X3 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order.at n=15A204374
• Number of nX4 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.at n=6A275127
• Number of 7 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.at n=3A275136
• Sum of all the parts in the partitions of n into 6 squarefree parts.at n=47A308903
• The number of twin binary Niven numbers (k, k+1) such that k <= 2^n.at n=21A337079
• G.f. satisfies A(x) = ( 1 + x*A(x)^2 * (1 + x) )^2.at n=6A371577