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A032607
Concatenation of n and n + 2 or {n,n+2}.
2
13, 24, 35, 46, 57, 68, 79, 810, 911, 1012, 1113, 1214, 1315, 1416, 1517, 1618, 1719, 1820, 1921, 2022, 2123, 2224, 2325, 2426, 2527, 2628, 2729, 2830, 2931, 3032, 3133, 3234, 3335, 3436, 3537, 3638, 3739, 3840, 3941, 4042, 4143, 4244
OFFSET
1,1
MATHEMATICA
Table[FromDigits[Flatten[IntegerDigits/@{n, n+2}]], {n, 50}] (* Harvey P. Dale, Dec 18 2013 *)
CROSSREFS
Sequence in context: A119590 A266912 A363823 * A335973 A190040 A081723
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, May 15 1998
STATUS
approved