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!)
A022778 Place where n-th 1 occurs in A023116. 5
1, 2, 4, 6, 9, 12, 16, 21, 26, 32, 38, 45, 52, 60, 69, 78, 88, 98, 109, 120, 132, 145, 158, 172, 186, 201, 217, 233, 250, 267, 285, 303, 322, 342, 362, 383, 404, 426, 448, 471, 495, 519, 544, 569, 595, 621, 648, 676, 704, 733, 762, 792, 823, 854 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also place where first n appears in A007337. - Franklin T. Adams-Watters, Nov 10 2006

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = n + 1 + Sum{floor[(n - k)/sqrt(3)], k = 0..n}.

MATHEMATICA

Table[n + 1 + Sum[Floor[(n - k)/Sqrt[3]], {k, 0, n}], {n, 0, 200}] (* A022778 *)

(* Clark Kimberling, Mar 14 2015 *)

CROSSREFS

Cf. A022776, A244977.

Sequence in context: A292459 A194250 A024610 * A156022 A224809 A327094

Adjacent sequences:  A022775 A022776 A022777 * A022779 A022780 A022781

KEYWORD

nonn

AUTHOR

Clark Kimberling

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 June 6 17:33 EDT 2020. Contains 334831 sequences. (Running on oeis4.)