

A127424


Numbers whose decimal expansion is a concatenation of 3 consecutive decreasing numbers.


5



210, 321, 432, 543, 654, 765, 876, 987, 1098, 11109, 121110, 131211, 141312, 151413, 161514, 171615, 181716, 191817, 201918, 212019, 222120, 232221, 242322, 252423, 262524, 272625, 282726, 292827, 302928, 313029, 323130, 333231, 343332, 353433, 363534
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..35.


EXAMPLE

a(13)=141312 because 14 and 13 and 12 are three consecutive decreasing numbers


MATHEMATICA

Table[FromDigits[Flatten[IntegerDigits[#]&/@Range[n, n2, 1]]], {n, 2, 40}] (* Harvey P. Dale, Nov 28 2013 *)


CROSSREFS

Cf. A127421A127424.
Sequence in context: A116200 A125011 A119427 * A074159 A033993 A046386
Adjacent sequences: A127421 A127422 A127423 * A127425 A127426 A127427


KEYWORD

nonn,base


AUTHOR

Artur Jasinski, Jan 14 2007


EXTENSIONS

Corrected and extended by Harvey P. Dale, Nov 28 2013


STATUS

approved



