[go: up one dir, main page]

login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A083291 Triangular array read by rows: T(n,k) = k*floor(n/10) + n mod 10, 0<=k<=n. 2
0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 3, 4, 5, 6, 7, 8, 9, 10, 11 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
0,4
COMMENTS
A010879(n)=T(n,0);
A076314(0)=T(0,0), A076314(n)=T(n,1) for n>0;
A028897(n)=T(n,n) for n<=1, A028897(n)=T(n,2) for n>1;
A028898(n)=T(n,n) for n<=2, A028898(n)=T(n,3) for n>2;
A028899(n)=T(n,n) for n<=3, A028899(n)=T(n,4) for n>3;
A028900(n)=T(n,n) for n<=4, A028900(n)=T(n,5) for n>4;
A028901(n)=T(n,n) for n<=5, A028901(n)=T(n,6) for n>5;
A028902(n)=T(n,n) for n<=6, A028902(n)=T(n,7) for n>6;
A028903(n)=T(n,n) for n<=7, A028903(n)=T(n,8) for n>7;
A028904(n)=T(n,n) for n<=8, A028904(n)=T(n,9) for n>8;
T(n,n) = n for n<=9, T(n,10) = n for n>9;
A083292(n) = T(n,n).
LINKS
Paolo Xausa, Table of n, a(n) for n = 0..11475 (rows 0..150 of the triangle, flattened).
EXAMPLE
From Paolo Xausa, May 22 2024: (Start)
Triangle begins:
[0] 0;
[1] 1, 1;
[2] 2, 2, 2;
[3] 3, 3, 3, 3;
[4] 4, 4, 4, 4, 4;
[5] 5, 5, 5, 5, 5, 5;
[6] 6, 6, 6, 6, 6, 6, 6;
[7] 7, 7, 7, 7, 7, 7, 7, 7;
[8] 8, 8, 8, 8, 8, 8, 8, 8, 8;
[9] 9, 9, 9, 9, 9, 9, 9, 9, 9, 9;
[10] 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10;
... (End)
MATHEMATICA
Table[k*Floor[n/10] + Mod[n, 10], {n, 0, 10}, {k, 0, n}]//Flatten (* Paolo Xausa, May 22 2024 *)
CROSSREFS
Sequence in context: A185283 A214972 A225687 * A169894 A357930 A003056
KEYWORD
nonn,tabl
AUTHOR
Reinhard Zumkeller, Apr 23 2003
EXTENSIONS
Offset changed to 0 by Paolo Xausa, May 22 2024
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 28 16:44 EDT 2024. Contains 375508 sequences. (Running on oeis4.)