A376434 Smallest n-digit term in A104179.

2, 23, 223, 2237, 23333, 223337, 2233373, 22323337, 222335353, 2232333533, 22323332323, 222335353337, 2223337223773, 22233372237737, 222322375373773, 2223223753737733, 22232232373337353, 222237322353237223, 2222327532332333737, 22223353533353323333

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Example

a(3) = 223 because 223 is the smallest 3-digit prime that is a concatenation of a 1-digit prime and a 2-digit prime that is itself a concatenation of 1-digit primes.

Crossrefs

Subsequence of A104179.

Cf. A376433, A376435.

Sequence in context: A030456 A357436 A069837 * A069629 A069614 A036937

Adjacent sequences: A376431 A376432 A376433 * A376435 A376436 A376437

Keyword

nonn,base

Author

Karl W. Heuer, Sep 22 2024

Status

approved