131106

Appears in sequences

• a(0)=0; for n>0, a(n) = Sum_{d|n} d*2^(n/d).at n=17A054598
• Sum_{d|n, d odd} d*2^(n/d).at n=17A054600
• Number of 2 X n 0-1 matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1), (01;0), (10;0) and (01;1).at n=17A100314
• Duplicate of A100314.at n=17A131831
• Positive integers with the same number of 1s in base 10 and base 2.at n=19A153115
• Number of 2Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 4 neighboring 1s.at n=15A297734
• The positions of ones in the reversed binary expansion of n have integer geometric mean.at n=44A326673
• a(n) = Sum_{d|n, d odd} (n/d)^d.at n=33A333823
• Maximum number of diagonal transversals in a cyclic diagonal Latin square of order 2n+1.at n=6A342997
• Bitmaps of king + rook vs. king checkmate patterns on a standard 8 X 8 board.at n=14A362950
• Maximum number of diagonal transversals in the diagonal Latin squares of order 2n+1 defined in A372922.at n=6A391212