A166727 Positive integers with English names ending in "r".

4, 24, 34, 44, 54, 64, 74, 84, 94, 104, 124, 134, 144, 154, 164, 174, 184, 194, 204, 224, 234, 244, 254, 264, 274, 284, 294, 304, 324, 334, 344, 354, 364, 374, 384, 394, 404, 424, 434, 444, 454, 464, 474, 484, 494, 504, 524, 534, 544, 554, 564, 574, 584, 594

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Formula

A017317 MINUS {n | n = 14 mod 100}.

a(n) = a(n-9) + 100, for n >= 10. - Michael S. Branicky, Apr 24 2021

Example

Fifty-four (54) is a term; fourteen (14) is not a term (but is a term of A060228).

Prog

(Python)
def a(n): return (n-1)//9*100 + ((n-1)%9 + 1)*((n-1)%9 > 0)*10 + 4
print([a(n) for n in range(1, 55)]) # Michael S. Branicky, Apr 24 2021

Crossrefs

Cf. A017317, A166726, A166728, A166729, A166730, A166731, A059093, A060228.

Sequence in context: A180924 A366190 A176900 * A229295 A007544 A333655

Adjacent sequences: A166724 A166725 A166726 * A166728 A166729 A166730

Keyword

easy,nonn,word

Author

Rick L. Shepherd, Oct 20 2009

Status

approved