45928

Appears in sequences

• Number of permutations of length n which avoid the patterns 1234, 4123, 4132.at n=10A116769
• a(n) = 6^n - 3^n + 1.at n=6A155611
• a(n) = 7*3^n + 1.at n=8A199110
• a(n) = 7*9^n + 1.at n=4A199567
• Number of length 4 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.at n=23A254221
• Expansion of e.g.f. 1/(1 - x + 2*log(1 - x)).at n=5A367922
• a(n) = Sum_{k = 0..n-1} (-1)^(n+k+1)*binomial(3*n, k)^3.at n=3A375180