Sorry, the APL program is only 26 characters: +/1 ¯4 4 8×[2](⍳9)∘.*¯1+⍳4 And out...

		jcl on Nov 6, 2009 \| parent \| context \| favorite \| on: 9,73,241,561,1081,1849,_?_ Sorry, the APL program is only 26 characters: `+/1 ¯4 4 8×[2](⍳9)∘.*¯1+⍳4` And outputs: `9 73 241 561 1081 1849 2913 4321 6121`