36108

Appears in sequences

• a(n) is the concatenation of n and 3n.at n=35A019551
• Numbers k such that k | sigma_7(k) - phi(k)^7.at n=21A055701
• Triangle T(n,k) (n>=1, rows have irregular lengths) giving number of arrangements of k nonattacking princes on an n X n staggered hexagonal torus board.at n=28A067015
• Starting numbers for which the RATS sequence has eventual period 3.at n=30A114613
• Partial sums of economical numbers A046759.at n=27A172460
• Triangle read by rows: Partial row sums of A181853(n,k).at n=42A181854
• a(n) = 2*n*(16*n - 13).at n=34A263228
• Sum of squares of parts of the partitions of 2n into two squarefree parts.at n=29A280316
• Numbers k such that both A381019(k) and A381019(k+1) are composite.at n=6A381120