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A075003 Floor[ concatenation of n+1 and n divided by 2 ]. 7
5, 10, 16, 21, 27, 32, 38, 43, 49, 54, 555, 605, 656, 706, 757, 807, 858, 908, 959, 1009, 1060, 1110, 1161, 1211, 1262, 1312, 1363, 1413, 1464, 1514, 1565, 1615, 1666, 1716, 1767, 1817, 1868, 1918, 1969, 2019, 2070, 2120, 2171, 2221, 2272, 2322, 2373, 2423 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
EXAMPLE
Sequence exhibits similar properties to A074993.
MAPLE
seq(floor((n*10+(n-1))/2), n=1..10), seq(floor((n*100+(n-1))/2), n=11..99);
CROSSREFS
Sequence in context: A276853 A178181 A277645 * A313895 A313896 A313897
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Sep 01 2002
EXTENSIONS
More terms from Sascha Kurz, Jan 14 2003
STATUS
approved

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Last modified July 25 00:10 EDT 2024. Contains 374585 sequences. (Running on oeis4.)