OFFSET
1,1
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..84
EXAMPLE
Triangle begins:
2;
7, 16;
34, 265, 512;
209, 7343, 41503, 65536;
1546, 304186, 6474726, 24997921, 33554432;
13327, 17525812, 1709852332, 21252557377, 57366997447, 68719476736;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. J. Mathar, Mar 09 2017
STATUS
approved