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A281067 a(1) = 1; a(n) is the smallest natural number such that a(n) > a(n-1), and the name of a(n) in English starts with the letter a(n-1) ends with, and a(n) makes the sequence extendable. 3
1, 8, 10, 19, 91, 801, 802, 1001, 8001, 8002, 100001, 800001, 800002, 1000000, 9000000, 9000001, 11000000, 19000000, 19000001, 80000000, 90000000, 90000001, 800000000, 900000000, 900000001, 8000000000, 9000000000, 9000000001, 11000000000, 19000000000, 19000000001, 80000000000, 90000000000, 90000000001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

"a(n) makes the sequence extendable" means the name of a(n) does not end with any of the letters r, x, y and d.

LINKS

Table of n, a(n) for n=1..34.

EXAMPLE

If a(5) were 90 (ninety, which ends with y), it would make the sequence finite. Therefore, a(5) has to be 91.

CROSSREFS

Cf. A277971, A277972, A281068.

Sequence in context: A022322 A302637 A230862 * A070974 A300022 A346783

Adjacent sequences:  A281064 A281065 A281066 * A281068 A281069 A281070

KEYWORD

easy,nonn,word

AUTHOR

Ivan N. Ianakiev, Jan 14 2017

STATUS

approved

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Last modified January 19 12:40 EST 2022. Contains 350465 sequences. (Running on oeis4.)