A095782 Values of n for which A095777(n) is 13 (those terms which are expressible in decimal digits for bases 2 through 14, but not for base 15).

14, 28, 29, 42, 44, 56, 57, 72, 73, 74, 85, 86, 100, 104, 196, 198, 199, 200, 201, 204, 210, 211, 212, 213, 216, 217, 224, 253, 254, 295, 392, 393, 396, 397, 398, 399, 434, 435, 436, 437, 438, 448, 449, 462, 463, 464, 507, 508, 509, 520, 521, 522, 523, 524

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Example

a(5)=44 because 44 when expressed in successive bases starting at 2 will produce its first non-decimal digit at base 15. Like so: 101100, 1122, 230, 134, 112, 62, 54, 48, 44, 40, 38, 35, 32. In base 15, 44 is 2E.

Maple

S := []; for n from 1 to 2000 do; if 1>0 then; ct := 0; ok := true; b := 2; if (n>9) then; while ok=true do; L := convert(n, base, b); for e in L while ok=true do; if (e > 9) then ok:=false; fi; od; if ok=true then; ct := ct + 1; b := b + 1; fi; od; fi; if ct=13 then S := [op(S), n]; fi; fi; od; S;

Crossrefs

Cf. A095777.

Sequence in context: A335476 A296755 A297282 * A391534 A143204 A276525

Adjacent sequences: A095779 A095780 A095781 * A095783 A095784 A095785

Keyword

base,nonn

Author

Chuck Seggelin (seqfan(AT)plastereddragon.com), Jun 05 2004

Status

approved