71519

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+601)^2 = y^2.at n=9A111258
• Number of permutations in S_n avoiding 21{bar 3}54 (i.e., every occurrence of 2154 is contained in an occurrence of a 21354) and such that the graph corresponding to the permutation is connected (see "Forest-like permutations" below).at n=8A117107