55537

Appears in sequences

• Strong pseudoprimes to base 26.at n=17A020252
• Strong pseudoprimes to base 27.at n=36A020253
• Number of lucky 2,6 triples <= 10^n.at n=8A055726
• Fixed points of permutations A256210 and A256371.at n=20A256372
• Odd composite integers m such that U(m)^2 == 1 (mod m) and V(m) == 6 (mod m), where U(m) and V(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=6 and b=-1, respectively.at n=39A337629