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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A107622 Primes plus alternately 2 and 3. 1
4, 6, 7, 10, 13, 16, 19, 22, 25, 32, 33, 40, 43, 46, 49, 56, 61, 64, 69, 74, 75, 82, 85, 92, 99, 104, 105, 110, 111, 116, 129, 134, 139, 142, 151, 154, 159, 166, 169, 176, 181, 184, 193, 196, 199, 202, 213, 226, 229, 232, 235, 242, 243, 254, 259, 266, 271, 274, 279 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

FORMULA

A107622(n) = prime(n) + (3 - mod(n, 2)).

MATHEMATICA

A107622[n_]:= Prime[n] + (3 - Mod[n, 2]) (* From Zak Seidov *)

Total[#]&/@Partition[Riffle[Prime[Range[100]], {2, 3}], 2] (* Harvey P. Dale, Dec 14 2010 *)

CROSSREFS

Cf. A107620, A107621, 107623.

Sequence in context: A285091 A286485 A277572 * A049306 A023635 A317649

Adjacent sequences:  A107619 A107620 A107621 * A107623 A107624 A107625

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, May 18 2005

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 16 21:39 EST 2019. Contains 320200 sequences. (Running on oeis4.)