A269724 Numbers which contain no 2's when written in bases 3 through 10.

0, 1, 3, 4, 31, 58130496, 58130499, 58130500, 58130703, 58183951, 77810815551163745898450783, 77810815551163745898451143, 61819635578801174196008456415, 61819635578801174196008574451, 61819635578801174196008574771

Offset: 1

Author

Nathan Fox, Mar 03 2016

Keywords

• nonn
• base

Comments

There are 134 known terms. If a(135) exists, it must exceed 10^2300.

Links

• Nathan Fox, Table of n, a(n) for n = 1..134

Crossrefs

Cf. A216192, A216194.

Programs

PARI

isok(n) = {for (b=3, 10, d = digits(n, b); if (vecsearch(vecsort(d,,8),2), return (0));); 1;} \\ Michel Marcus, Mar 06 2016