

A166713


Alliterativedigit numbers: Positive integers n such that the English names of the decimal digits of n begin with the same letter; ignore singledigit numbers.


0



11, 22, 23, 32, 33, 44, 45, 54, 55, 66, 67, 76, 77, 88, 99, 111, 222, 223, 232, 233, 322, 323, 332, 333, 444, 445, 454, 455, 544, 545, 554, 555, 666, 667, 676, 677, 766, 767, 776, 777, 888, 999, 1111, 2222, 2223, 2232, 2233, 2322, 2323, 2332, 2333, 3222, 3223
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OFFSET

1,1


COMMENTS

The multidigit repdigits (A014181) are a subsequence. No term contains the digit 0 (zero). All terms containing digits 1 (one), 8 (eight), or 9 (nine) are also terms of A014181. Any term not mentioned above is a string of 2's (twos) and 3's (threes) only (a multidigit term of A032810), 4's (fours) and 5's (fives) only, or 6's (sixes) and 7's (sevens) only.


LINKS

Table of n, a(n) for n=1..53.


EXAMPLE

454 is a term as digits "four", "five", "four" each begin with the letter "f".


CROSSREFS

Cf. A146755, A014181, A032810.
Sequence in context: A140452 A048136 A180054 * A297273 A296746 A095779
Adjacent sequences: A166710 A166711 A166712 * A166714 A166715 A166716


KEYWORD

base,easy,nonn,word


AUTHOR

Rick L. Shepherd, Oct 19 2009


STATUS

approved



