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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127439 Triangle read by rows, in which row n consists of first n terms of A054541. 0
2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 4, 2, 1, 2, 2, 4, 2, 2, 1, 2, 2, 4, 2, 4, 2, 1, 2, 2, 4, 2, 4, 2, 2, 1, 2, 2, 4, 2, 4, 2, 4, 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6, 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6, 4 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row sums give A000040.

Rows tend to A054541: (2, 1, 2, 2, 4, 2, 4,...)

LINKS

Table of n, a(n) for n=1..91.

EXAMPLE

prime(5) = 2 + 1 + 2 + 2 + 4 = 11.

CROSSREFS

Cf. A054541, A000040, A001223.

Sequence in context: A082389 A246127 A119469 * A218775 A191971 A092788

Adjacent sequences:  A127436 A127437 A127438 * A127440 A127441 A127442

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 14 2007

EXTENSIONS

Edited by N. J. A. Sloane, Jan 27 2007

More terms from Omar E. Pol, Feb 21 2014

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 17 17:05 EDT 2018. Contains 313816 sequences. (Running on oeis4.)