24149
domain: N
Appears in sequences
- Number of positive integers <= 2^n of form 5 x^2 + 6 y^2.at n=18A054176
- Numbers k such that phi(k) + phi(k+1) = sigma(k).at n=12A067799
- Numbers which are the sum of two positive cubes and divisible by 31.at n=35A102658
- a(n) = determinant of n X n circulant matrix whose first row is the first n distinct Fibonacci numbers A000045(2), A000045(3), ... A000045(n+1).at n=4A118704
- Terms of A024670 that are not in A141805.at n=36A141806
- Number of (w,x,y) with all terms in {0,...,n} and w <= x + y and x < y.at n=38A212981
- Number of length 2+2 0..n arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=19A251429
- Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=9A316307
- Maximum word length generated by acyclic context-free grammar in Greibach normal form whose grammar size is at most n.at n=35A389642