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A032643
Numbers k such that k concatenated with k+3 is a lucky number.
1
2, 6, 14, 20, 24, 32, 48, 50, 66, 68, 78, 84, 108, 120, 128, 134, 146, 156, 162, 200, 210, 218, 224, 228, 254, 266, 270, 284, 290, 306, 312, 314, 318, 324, 330, 332, 344, 360, 378, 380, 390, 396, 402, 410, 438, 452, 456, 458, 476, 482, 492, 494, 510, 512, 540
OFFSET
1,1
CROSSREFS
Sequence in context: A189804 A308394 A246068 * A067664 A130800 A067262
KEYWORD
nonn,easy,base
AUTHOR
Patrick De Geest, May 15 1998
EXTENSIONS
More terms from Sascha Kurz, Mar 24 2002
STATUS
approved