A023740 Numbers with exactly 3 4's in base 5 expansion.

124, 249, 374, 499, 524, 549, 574, 599, 604, 609, 614, 619, 620, 621, 622, 623, 749, 874, 999, 1124, 1149, 1174, 1199, 1224, 1229, 1234, 1239, 1244, 1245, 1246, 1247, 1248, 1374, 1499, 1624, 1749, 1774, 1799, 1824, 1849

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[ Range[ 2000 ], (Count[ IntegerDigits[ #, 5 ], 4 ]==3)& ]

Crossrefs

Sequence in context: A270864 A038866 A043367 * A031476 A045205 A045295

Adjacent sequences: A023737 A023738 A023739 * A023741 A023742 A023743

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved