93654

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 34.at n=17A031712
• Number of ternary squarefree necklaces.at n=43A066297
• G.f.: -2*(-2 - 11*x - 4*x^2 + x^3)/(x - 1)^4.at n=25A152110
• a(n) = 324*n^2 + 18.at n=17A158590
• Even 9-gonal (nonagonal) pyramidal numbers.at n=31A218329
• Number of ordinary double points of a family of threefolds.at n=20A294604
• Number of nX3 0..1 arrays with no 1 adjacent to 4 king-move neighboring 1s.at n=5A297097
• Number of nX6 0..1 arrays with no 1 adjacent to 4 king-move neighboring 1s.at n=2A297100
• T(n,k)=Number of nXk 0..1 arrays with no 1 adjacent to 4 king-move neighboring 1s.at n=30A297102
• T(n,k)=Number of nXk 0..1 arrays with no 1 adjacent to 4 king-move neighboring 1s.at n=33A297102
• Number of regions into which a figure made up of a row of n adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles (a(0)=0 by convention).at n=27A306302