196098

Appears in sequences

• Harary index of the n X n queen graph.at n=28A296196
• Fold a square sheet of paper alternately vertically to the left and horizontally downwards; after each fold, draw a line along each inward crease; after n folds, the resulting graph has a(n) connected components.at n=21A342762
• Expansion of Sum_{k>0} k * x^k / (1 - k * x^k)^(k+1).at n=20A360823