|
Search: id:A102672
|
|
|
| A102672 |
|
Number of digits >=3 in the decimal representations of all integers from 0 to n. |
|
+0
1
|
|
| 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 8, 9, 10, 11, 12, 13, 14, 14, 14, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 28, 30, 32, 34, 36, 38, 39, 40, 41, 43, 45, 47, 49, 51, 53, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 73, 74, 75, 77, 79, 81, 83, 85, 87, 89, 90, 91, 92, 94
(list; graph; listen)
|
|
|
OFFSET
|
0,5
|
|
|
MAPLE
|
p:=proc(n) local b, ct, j: b:=convert(n, base, 10): ct:=0: for j from 1 to nops(b) do if b[j]>=3 then ct:=ct+1 else ct:=ct fi od: ct: end: seq(add(p(i), i=0..n), n=0..80); (Deutsch)
|
|
CROSSREFS
|
Partial sums of A102671.
Adjacent sequences: A102669 A102670 A102671 this_sequence A102673 A102674 A102675
Sequence in context: A117656 A101918 A132125 this_sequence A114955 A060207 A134679
|
|
KEYWORD
|
nonn,base,easy
|
|
AUTHOR
|
njas, Feb 03 2005
|
|
EXTENSIONS
|
More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Feb 23 2005
|
|
|
Search completed in 0.002 seconds
|
