38982

Appears in sequences

• Number of rooted trees with n nodes and 2-colored non-leaf nodes.at n=9A004113
• Numbers k such that sigma(k+2) = sigma(k).at n=37A007373
• Numbers k such that A065608(k) = A065608(k+2).at n=17A065064
• Number of permutations avoiding the consecutive pattern 52341.at n=7A202228
• Number of permutations avoiding the consecutive pattern 42531.at n=7A202230
• Number of permutations avoiding the consecutive pattern 41352.at n=7A202232
• Number of permutations avoiding the consecutive pattern 35124.at n=7A202234
• Number of nondecreasing -3..3 vectors of length n whose dot product with some nonincreasing -3..3 vector equals n.at n=14A226394
• Numbers k such that k and k+2 have the same number (A000005) and sum of divisors (A000203).at n=14A229254
• Number of integer partitions of n with no adjacent parts of quotient 2.at n=47A350837