login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A093655 First column of lower triangular matrix A093654. 5
1, 1, 1, 2, 1, 2, 2, 7, 1, 2, 2, 7, 2, 7, 7, 41, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 2, 7, 7, 41, 7, 41, 41, 397, 7, 41, 41, 397, 41, 397, 397, 6377 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Related to the number of tournament sequences (A008934).

a(n) equals the number of tournament sequences (A008934) of length A000120(n-1), which is the number of 1's in the binary expansion of n-1.

LINKS

Table of n, a(n) for n=1..64.

FORMULA

a(2^n) = A008934(n) for n>=0.

a(n) = A008934(A000120(n-1)) for n>=1.

CROSSREFS

Cf. A008934, A093655.

Cf. A000120.

Sequence in context: A081727 A000020 A077014 * A023140 A145859 A145863

Adjacent sequences:  A093652 A093653 A093654 * A093656 A093657 A093658

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Apr 08 2004

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 February 20 14:54 EST 2019. Contains 320327 sequences. (Running on oeis4.)