a(1) = 2; for n > 1, a(n) is the smallest prime > a(n-1) such that each successive digit in the concatenation of terms (that does not follow 9) is greater than the previous digit.
A068827
a(1) = 2; for n > 1, a(n) is the smallest prime > a(n-1) such that each successive digit in the concatenation of terms (that does not follow 9) is greater than the previous digit.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =89a(5) =127a(6) =919a(7) =1237a(8) =8923a(9) =8929a(10) =8969a(11) =12347a(12) =89123a(13) =89137a(14) =89189a(15) =89237a(16) =89269a(17) =89293a(18) =89393a(19) =89459a(20) =89491a(21) =89567a(22) =89591a(23) =89597a(24) =89689a(25) =89797a(26) =89891a(27) =89897a(28) =91237a(29) =91249
External references
- oeis: A068827