A023702 Numbers with exactly 4 2's in their ternary expansion of n.

80, 161, 188, 215, 224, 233, 236, 239, 240, 241, 323, 404, 431, 458, 467, 476, 479, 482, 483, 484, 512, 539, 548, 557, 560, 563, 564, 565, 593, 620, 629, 638, 641, 644, 645, 646, 656, 665, 668, 671, 672, 673, 683, 692, 695

Offset

1,1

Links

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

Mathematica

Select[ Range[ 729 ], (Count[ IntegerDigits[ #, 3 ], 2 ]==4)& ]

Crossrefs

Sequence in context: A371150 A295593 A043332 * A031460 A044993 A043486

Adjacent sequences: A023699 A023700 A023701 * A023703 A023704 A023705

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved