33789

Appears in sequences

• a(n) = A036800(n)/2.at n=9A036826
• Index of first occurrence of the first n digits of e in the decimal expansion of Pi.at n=5A090898
• Number of permutations of length n which avoid the patterns 2314, 2431, 4123.at n=10A116786
• Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=-1 and l=-1.at n=8A176957
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-2k)^k for 0 <= k <= n.at n=46A248830
• Main diagonal of Unlucky array: a(n) = A255543(n,n).at n=31A255549
• Numbers equidistant from twin prime pairs that are also equidistant from numbers equidistant from twin prime pairs.at n=32A260517