OFFSET
0,4
EXAMPLE
[0] 1;
[1] 1, 1;
[2] 21, 42, 21;
[3] 1849, 5547, 5547, 1849;
[4] 426405, 1705620, 2558430, 1705620, 426405;
[5] 203374081, 1016870405, 2033740810, 2033740810, 1016870405, 203374081;
PROG
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Peter Luschny, May 05 2023
STATUS
approved