122111279domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(1) = 1; a(2n) is smallest prime starting with a(2n-1) and a number with no insignificant zeros, and a(2n+1) is smallest prime ending in a(2n-1). Alternate left and right concatenation yielding primes.at n=7A069613Prime numbersat n=6955052