8551800

Appears in sequences

• Number of pairings {(b(1), c(1)), (b(2), c(2)), ..., (b(n), c(n))} of the first 2n positive integers satisfying b(i) < c(i) and such that the 2n numbers c(i)+b(i) and c(i)-b(i) are all distinct.at n=12A002968
• Sum of squares of first n tetranacci numbers (A000288).at n=14A107241
• a(n) = A033148(n) / 2^floor(n/4).at n=48A260189