A352735 - OEIS

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A352735

Lucky numbers in Chinese: Numbers whose decimal expansion contains 8 but not 4.

8, 18, 28, 38, 58, 68, 78, 80, 81, 82, 83, 85, 86, 87, 88, 89, 98, 108, 118, 128, 138, 158, 168, 178, 180, 181, 182, 183, 185, 186, 187, 188, 189, 198, 208, 218, 228, 238, 258, 268, 278, 280, 281, 282, 283, 285, 286, 287, 288, 289, 298, 308, 318, 328, 338, 358

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

The number 8 (八) sounds like 发 = "to get rich". The number 4 (四) sounds like 死 = "to die". Many numbers are auspicious or inauspicious in Chinese numerology but these are perhaps the most common.

LINKS

Table of n, a(n) for n=1..56.

FORMULA

a(n) ≍ n^k where k = A154160 = 1.047951637....

PROG

(PARI) is(n)=setintersect(Set(digits(n)), [4, 8])==[8]

CROSSREFS

Intersection of A052406 and A011538.

Sequence in context: A043521 A277595 A017365 * A084394 A085248 A278546

Adjacent sequences: A352732 A352733 A352734 * A352736 A352737 A352738

KEYWORD

nonn,base,easy

AUTHOR

Charles R Greathouse IV, Mar 30 2022

STATUS

approved