1716313domain: NPropertiesPrimalityPrimeyesAppears in sequencesLower (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.at n=26A390348Upper (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.at n=26A390349Prime numbersat n=129269