39449

Appears in sequences

• Brilliant numbers k such that 2k+1 is also brilliant.at n=24A085649
• Number of Young tableaux with i k-length rows with i,k>=0, i+k=n, increasing entries down the columns and monotonic entries along the rows (first row increasing).at n=8A208729
• a(n) = number of decimal digits in the n-th odd Catalan number A038003(n).at n=16A260677