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!)
A290436 a(n) = A289676(3*n+1). 9
2, 2, 4, 5, 10, 21, 43, 85, 146, 250, 462, 960, 2069, 4296, 8485, 16496, 32041, 61700, 118357 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

No formulas or recurrences are known for the important sequences A289670 and A289671. The essence of these two sequences is captured in the six entries A290436-A290441. Any numerical properties of these would be most welcome.

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Cf. A284116, A284119, A284121, A289670-A289677, A290436-A290441.

Sequence in context: A054538 A238020 A095020 * A127825 A185100 A103420

Adjacent sequences:  A290433 A290434 A290435 * A290437 A290438 A290439

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Aug 02 2017

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 May 31 02:51 EDT 2020. Contains 334747 sequences. (Running on oeis4.)