The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A074366 The first prime greater than the concatenation of the first n primes. 2
 3, 29, 239, 2371, 235723, 23571127, 2357111357, 235711131727, 23571113171939, 2357111317192343, 235711131719232977, 23571113171923293283, 2357111317192329313801, 235711131719232931374149, 23571113171923293137414371, 2357111317192329313741434781 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..200 EXAMPLE The first prime > 235, the concatenation of the first three primes, is 239. Hence a(3) = 239. MATHEMATICA p[n_] := Module[{r, i}, r = 2; i = 1; While[r <= n, i = i + 1; r = Prime[i]]; r]; s = ""; a = {}; Do[s = s <> ToString[Prime[i]]; a = Append[a, p[ToExpression[s]]], {i, 1, 8}]; a <

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 13 20:42 EDT 2024. Contains 374288 sequences. (Running on oeis4.)