Primes that are a concatenation of consecutive primes in two ways.

Terms

a(0) =199211a(1) =211199a(2) =233239a(3) =239233a(4) =257263a(5) =263257a(6) =353359a(7) =359353a(8) =523541a(9) =541523a(10) =653659a(11) =659653a(12) =971977a(13) =977971a(14) =19731979a(15) =19791973a(16) =23332339a(17) =23392333a(18) =32593271a(19) =32713259a(20) =36373643a(21) =36433637a(22) =37613767a(23) =37673761a(24) =42834289a(25) =42894283a(26) =49934999a(27) =49994993