48344

Appears in sequences

• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0}.at n=13A079997
• G.f. 1/((3*x-1)*(x^2-x-1)).at n=10A107361
• Number of compositions of n with parts in N which avoid the consecutive pattern 123.at n=17A128761
• a(n) = n^4 + 3*n^3 + 8*n^2 + 9*n + 2.at n=14A270868
• a(n) = Sum_{k=0..floor(n/3)} 3^k * 2^(n-2*k) * binomial(n-2*k,k)^2.at n=9A387511