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!)
A073429 Upper triangular region of the table A073345. 3
1, 0, 1, 0, 0, 2, 0, 0, 1, 4, 0, 0, 0, 6, 8, 0, 0, 0, 6, 20, 16, 0, 0, 0, 4, 40, 56, 32, 0, 0, 0, 1, 68, 152, 144, 64, 0, 0, 0, 0, 94, 376, 480, 352, 128, 0, 0, 0, 0, 114, 844, 1440, 1376, 832, 256, 0, 0, 0, 0, 116, 1744, 4056, 4736, 3712, 1920, 512, 0, 0, 0, 0, 94, 3340 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,6

LINKS

Table of n, a(n) for n=0..71.

FindStat - Combinatorial Statistic Finder, The depth of the binary tree.

MAPLE

A073429 := n -> A073345bi(A003056(n), A002262(n));

A002262 := n -> n - binomial(floor((1/2)+sqrt(2*(1+n))), 2);

A003056 := n -> floor(sqrt(2*(1+n))-(1/2));

CROSSREFS

Sequence in context: A259784 A145224 A138157 * A123634 A330140 A091866

Adjacent sequences:  A073426 A073427 A073428 * A073430 A073431 A073432

KEYWORD

nonn,tabl

AUTHOR

Antti Karttunen, Jul 31 2002

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 April 5 15:29 EDT 2020. Contains 333245 sequences. (Running on oeis4.)