370891domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 9n^2 + 10.at n=24A201708a(n) = a(n-1) + a(n-2) + a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=26A298338Prime numbersat n=31589