A247474 Numbers formed by concatenating two successive primes and their sum.

235, 358, 5712, 71118, 111324, 131730, 171936, 192342, 232952, 293160, 313768, 374178, 414384, 434790, 4753100, 5359112, 5961120, 6167128, 6771138, 7173144, 7379152, 7983162, 8389172, 8997186, 97101198, 101103204, 103107210, 107109216, 109113222, 113127240

Offset: 1

Author

Jennifer Jin, Nov 30 2014

Keywords

• nonn
• base

Comments

After the first term, every term is even.

Examples

			For n=1 the two successive primes are 2 and 3, 2+3=5. Therefore the number created is 235.
		

Links

• Michael De Vlieger, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A001043, A045533.

Programs

Mathematica

a247474[n_Integer] := Module[{p, f}, p := Prime /@ List[n, n + 1]; FromDigits@Flatten@Join[IntegerDigits[p], IntegerDigits[Plus @@ p]]]; a247474/@Range[120] (* Michael De Vlieger, Dec 01 2014 *)
FromDigits[Join[IntegerDigits[#[[1]]],IntegerDigits[#[[2]]], IntegerDigits[ Total[#]]]]&/@Partition[Prime[Range[40]],2,1] (* Harvey P. Dale, Jul 29 2015 *)