

A067823


Start with 2 and concatenate ("absorb") the next prime; continually repeat this procedure.


3




OFFSET

1,1


LINKS



EXAMPLE

The next prime after 2 is 3, so 23 follows 2 in the sequence. The next prime after 23 is 29, so 2329 comes after 23 in the sequence.


MATHEMATICA

NextPrim[n_] := Block[{k = n + 1}, While[ !PrimeQ[k], k++ ]; k]; f[n_] := ToExpression[ ToString[n] <> ToString[ NextPrim[n]]]; NestList[f, 2, 7]


CROSSREFS



KEYWORD

easy,nonn,base


AUTHOR



EXTENSIONS



STATUS

approved



