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A098754 Slowest increasing sequence of integers that alternately begin and end with 1. 0
1, 11, 12, 21, 100, 101, 102, 111, 112, 121, 122, 131, 132, 141, 142, 151, 152, 161, 162, 171, 172, 181, 182, 191, 192, 201, 1000, 1001, 1002, 1011, 1012, 1021, 1022, 1031, 1032, 1041, 1042, 1051, 1052, 1061, 1062, 1071, 1072, 1081, 1082, 1091, 1092, 1101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Sequence in context: A132359 A131363 A089185 * A098752 A240763 A231871

Adjacent sequences:  A098751 A098752 A098753 * A098755 A098756 A098757

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, Oct 01 2004

EXTENSIONS

More terms from Sam Alexander, Jan 04 2005

More terms from Max Alekseyev, Jan 31 2010

STATUS

approved

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Last modified October 24 10:40 EDT 2021. Contains 348225 sequences. (Running on oeis4.)