23861

Appears in sequences

• Row sums of triangle A131819.at n=40A131820
• Real part of Sum_{k=0..n} (k + i^k)^2, where i=sqrt(-1).at n=41A236377
• Number of nX2 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=11A304349
• Number of n-node rooted trees in which four equals the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root.at n=11A318900
• Positive integers k such that (k+1)^4 has a divisor congruent to -1 modulo k.at n=44A350916
• a(0) = 5, a(1) = 5, and a(n) = 4*a(n-1) - a(n-2) - 4 for n >= 2.at n=8A350920