OFFSET
1,2
COMMENTS
EXAMPLE
1 is a term because 2^0*3^0 - (0+0) = 2^1*3^0 - (1+0) = 1.
2 is a term because 2^2*3^0 - (2+0) = 2^0*3^1 - (0+1) = 2.
4 is a term because 2^1*3^1 - (1+1) = 4.
MATHEMATICA
With[{nn=20}, Take[Flatten[Table[2^i 3^j-i-j, {i, 0, nn}, {j, 0, nn}]]//Union, 60]] (* Harvey P. Dale, Aug 29 2022 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Mar 18 2002
EXTENSIONS
Duplicated term 2 and incorrect formula removed by Altug Alkan, Apr 09 2018
STATUS
approved