A023701 Numbers with exactly 3 2's in their ternary expansion.

26, 53, 62, 71, 74, 77, 78, 79, 107, 134, 143, 152, 155, 158, 159, 160, 170, 179, 182, 185, 186, 187, 197, 206, 209, 212, 213, 214, 218, 221, 222, 223, 227, 230, 231, 232, 234, 235, 237, 238, 269, 296, 305, 314, 317, 320, 321

Offset

1,1

Links

Seiichi Manyama, Table of n, a(n) for n = 1..10000

Mathematica

Select[ Range[ 324 ], (Count[ IntegerDigits[ #, 3 ], 2 ]==3)& ]

Crossrefs

Sequence in context: A121738 A335475 A043331 * A031459 A044992 A042338

Adjacent sequences: A023698 A023699 A023700 * A023702 A023703 A023704

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved