1,1

Table of n, a(n) for n=1..58.

101 is not a term since the two digits 1 are separated by the 0.

233 is a term since the digits 2 and 3 are grouped, and it is prime.

Cf. A052086, A052081, A052082, A052083, A052084.

Sequence in context: A049549 A030291 A242541 * A082646 A231588 A038618

Adjacent sequences: A052082 A052083 A052084 * A052086 A052087 A052088

nonn,base

Patrick De Geest, Jan 15 2000

approved