login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A116188 Triangle T(n,k), 0<=k<=n : T(n,k)is smallest number such that T(n,k)>=T(n-1,k-1), T(n,k)>=T(n-1,k), T(n,k)and T(n-1,k-1)+T(n-1,k) have the same parity, T(0,0)=1 . 0
1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 4, 4, 1, 1, 5, 4, 4, 5, 1, 1, 6, 5, 4, 5, 6, 1, 1, 7, 7, 5, 5, 7, 7, 1, 1, 8, 8, 8, 6, 8, 8, 8, 1, 1, 9, 8, 8, 8, 8, 8, 8, 9, 1, 1, 10, 9, 8, 8, 8, 8, 8, 9, 10, 1, 1, 11, 11, 9, 8, 8, 8, 8, 9, 11, 11, 1, 1, 12, 12, 12, 9, 8, 8, 8, 9, 12, 12, 12, 1, 1, 13, 12, 12, 13, 9 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

Sequence read mod 2 gives A047999 .

LINKS

Table of n, a(n) for n=0..96.

EXAMPLE

Triangle begins:

1;

1, 1;

1, 2, 1;

1, 3, 3, 1;

1, 4, 4, 4, 1;

1, 5, 4, 4, 5, 1;

1, 6, 5, 4, 5, 6, 1;

1, 7, 7, 5, 5, 7, 7, 1;

1, 8, 8, 8, 6, 8, 8, 8, 1;

1, 9, 8, 8, 8, 8, 8, 8, 9, 1;

CROSSREFS

Diagonals : A000012, A000027, A098181, A127932, A127934.

Sequence in context: A141524 A192650 A178059 * A318274 A329330 A049695

Adjacent sequences:  A116185 A116186 A116187 * A116189 A116190 A116191

KEYWORD

nonn,tabl

AUTHOR

Philippe Deléham, Apr 08 2007

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)