39363

Appears in sequences

• Number of permutations of length n which avoid the patterns 231, 3214, 4312.at n=14A116712
• Row 5 of rectangular table A124530.at n=7A124535
• Integers N such that by inserting + or - or * or / or ^ between each of their digits, without any grouping parentheses, you can get N (the ambiguous a^b^c is avoided).at n=17A156954
• Integers n such that by inserting between their digits + or - or * or / or ^ or nothing (i.e., concatenate two digits) you recover n back in a nontrivial way.at n=26A157198
• G.f. satisfies A(x) = (1 + x*A(x))^2 * (1 + x*A(x)^2).at n=6A274734