50737

Appears in sequences

• Lucas sequence U(5,-8): a(n+1) = 5*a(n) + 8*a(n-1), a(0)=0, a(1)=1.at n=7A015544
• Strong pseudoprimes to base 11.at n=15A020237
• Strong pseudoprimes to base 20.at n=18A020246
• Strong pseudoprimes to base 23.at n=23A020249
• Strong pseudoprimes to base 35.at n=19A020261
• Strong pseudoprimes to base 39.at n=22A020265
• Strong pseudoprimes to base 89.at n=25A020315
• Row sums of A110321, a number triangle related to the Jacobsthal numbers.at n=6A110322
• 10-gonal (or decagonal) numbers with prime indices.at n=29A267217
• Squarefree terms of A372894 whose prime factors are neither elite (A102742) nor anti-elite (A128852).at n=21A372896