OFFSET
1,3
COMMENTS
This sequence ends with 672 terms.
LINKS
Carole Dubois, Table of n, a(n) for n = 1..672
Carole Dubois, Hexagonal spiral for A363765
EXAMPLE
a(26) = 27 because the neighbors of the 26th hexagon are 10, 30, 33, 44, 48, 51 which have no common digit with 27.
a(673) can't be calculated because its neighbors would be 216, 397, and 548, and they use all digits.
CROSSREFS
KEYWORD
base,nonn,fini,full
AUTHOR
Carole Dubois, Jun 20 2023
STATUS
approved