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A023730 Numbers with a single 2 in their base 5 expansion. 2
2, 7, 10, 11, 13, 14, 17, 22, 27, 32, 35, 36, 38, 39, 42, 47, 50, 51, 53, 54, 55, 56, 58, 59, 65, 66, 68, 69, 70, 71, 73, 74, 77, 82, 85, 86, 88, 89, 92, 97, 102, 107, 110, 111, 113, 114, 117, 122, 127, 132, 135, 136, 138, 139, 142, 147 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

MATHEMATICA

Select[ Range[ 150 ], (Count[ IntegerDigits[ #, 5 ], 2 ]==1)& ]

CROSSREFS

Sequence in context: A024831 A194421 A043357 * A045281 A050596 A045266

Adjacent sequences:  A023727 A023728 A023729 * A023731 A023732 A023733

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified January 29 00:42 EST 2022. Contains 350670 sequences. (Running on oeis4.)