35369

Appears in sequences

• Brilliant numbers k such that 2k+1 is also brilliant.at n=19A085649
• a(n) = (A203768(n+2) - 1)/2.at n=6A203769
• Expansion of 1/G(1) where G(k) = 1 - (q/(1-q))^k / G(k+1).at n=12A238435
• Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=19A257439
• Number of up steps in all bargraphs of semiperimeter n (n>=2).at n=9A273351
• Breadth-first reading of the subtree rooted at 7 of the tree where each parent node is the arithmetic derivative (A003415) of all its children.at n=39A327977