|
| |
|
|
A033048
|
|
Numbers whose set of base 12 digits is {0,1}.
|
|
5
| |
|
|
0, 1, 12, 13, 144, 145, 156, 157, 1728, 1729, 1740, 1741, 1872, 1873, 1884, 1885, 20736, 20737, 20748, 20749, 20880, 20881, 20892, 20893, 22464, 22465, 22476, 22477, 22608, 22609, 22620, 22621, 248832, 248833, 248844, 248845, 248976
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,3
|
|
|
COMMENTS
| Sums of distinct powers of 12.
|
|
|
LINKS
| T. D. Noe, Table of n, a(n) for n=0..1023
|
|
|
FORMULA
| a(n)=Sum{d(i)*12^i: i=0, 1, ..., m}, where Sum{d(i)*2^i: i=0, 1, ..., m} is the base 2 representation of n.
a(n) = A097258(n)/11.
a(2n) = 12*a(n), a(2n+1) = a(2n)+1.
a(n)=Sum_k>=0 {A030308(n,k)*b(k)} with b(k)=12^k=A001021(k). - From DELEHAM Philippe, Oct 19 2011.
|
|
|
CROSSREFS
| Cf. A000695, A005836, A033042-A033052.
Row 11 of array A104257.
Sequence in context: A129476 A037278 A164852 * A108771 A041308 A041309
Adjacent sequences: A033045 A033046 A033047 * A033049 A033050 A033051
|
|
|
KEYWORD
| nonn,base
|
|
|
AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
|
|
|
EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 3 2004
|
| |
|
|
