34384

Appears in sequences

• Number of Catalan objects of size n fixed by Catalan Automorphism A057511/A057512 (deep rotation of general parenthesizations/plane trees).at n=27A057546
• Jordan function J_3(n).at n=33A059376
• Multiplicative with a(p^e) = 1 - p^3.at n=33A063453
• Row sums in A082259.at n=15A082261
• Numbers k such that 2^k + 3^(k-1) is prime.at n=53A082400
• Coefficient of x in the reduction (by x^2->x+1) of polynomial p(n,x) identified in Comments.at n=9A192349
• Number of -4..4 arrays x(i) of n+1 elements i=1..n+1 with x(i)+x(j), x(i+1)+x(j+1), -(x(i)+x(j+1)), and -(x(i+1)+x(j)) having two or three distinct values for every i<=n and j<=n.at n=8A211689
• The unitary totient of the smallest cube divisible by n.at n=33A392088
• The unitary totient of the smallest cubefull number that is divisible by n.at n=33A392090