A166710 a(n)=prime(n) written in base the largest digit of prime(n).

10, 10, 10, 10, 11, 111, 23, 21, 212, 32, 1011, 52, 221, 223, 65, 203, 65, 141, 124, 131, 133, 87, 123, 108, 117, 101, 10211, 212, 131, 11012, 241, 11212, 254, 164, 175, 1101, 313, 431, 326, 335, 218, 265, 232, 234, 238, 241, 11010011, 22021, 443, 274, 22122

Offset: 1

Author

Zak Seidov, Oct 18 2009

Keywords

• base
• nonn

Comments

If prime(n) is a repunit then a(n)=prime(n) by convention.

Examples

			a(6)=23 because p(6)=13 written in base 3 is 23,
a(7)=21 because p(7)=19 written in base 9 is 21.
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A072803 n written in base Mod[n, 10].

Programs

Mathematica

Table[p=Prime[n];id=IntegerDigits[p];ma=If[Max[id]==1,10,Max[id]];FromDigits[IntegerDigits[p,ma]],{n,1,128}]