OFFSET
4,3
COMMENTS
Note that the last row with index 9 may still be incomplete.
If k is in row n then k is in row n+1. - David A. Corneth, Aug 04 2020
EXAMPLE
Triangle begins:
4| 1;
5| 1, 2, 22;
6| 1, 2, 3, 7, 22;
7| 1, 2, 3, 4, 7, 22, 87, 9831;
8| 1, 2, 3, 4, 5, 7, 9, 17, 22, 51, 87, 102, 2601, 9831, 314767045;
9| 1, 2, 3, 4, 5, 6, 7, 9, 17, 22, 51, 87, 91, 102, 220, 2601, 5258, 7491, ...
...
For n=4, there is a single integer whose base 2 and base 3 representations are each other reverse: it is 1 which is its own reverse.
CROSSREFS
KEYWORD
nonn,base,tabf
AUTHOR
Michel Marcus, Aug 04 2020
EXTENSIONS
a(32) from Graham Holmes, Aug 04 2020
More terms from Jinyuan Wang, Aug 04 2020
STATUS
approved