1,2

The infinite string resulting from the concatenation of all terms matches the regular expression "^(1234567895)*".

Table of n, a(n) for n=1..50.

Rémy Sigrist, PARI program for A327735

Rémy Sigrist, Logarithmic scatterplot of the first 500 terms

Apparently, a(n + 100) = a(n) * 10^10 + (a(n) mod 10^10) for any n >= 90.

(PARI) See Links section.

See A327453 and A327733 for other variants.

Sequence in context: A024660 A257814 A327455 * A133287 A133377 A121535

Adjacent sequences: A327732 A327733 A327734 * A327736 A327737 A327738

nonn,base

Rémy Sigrist, Sep 23 2019

approved