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A247474 Numbers formed by concatenating two successive primes and their sum. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

After the first term, every term is even.

LINKS

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

EXAMPLE

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

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 *)

CROSSREFS

Cf. A001043, A045533.

Sequence in context: A049857 A218038 A132903 * A147148 A173629 A097487

Adjacent sequences:  A247471 A247472 A247473 * A247475 A247476 A247477

KEYWORD

nonn,base

AUTHOR

Jennifer Jin, Nov 30 2014

STATUS

approved

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Last modified August 5 05:22 EDT 2020. Contains 336209 sequences. (Running on oeis4.)