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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A114459 Integer part of sqrt(n)+sqrt(n+1)+sqrt(n+2)+sqrt(n+3). 2
6, 7, 8, 9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 18, 19, 19, 20, 20, 20, 21, 21, 22, 22, 22, 23, 23, 23, 24, 24, 24, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 34 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

X. Zhan, Formulae for sums of consecutive square roots, The Math. Intelligencer, 27, No. 4, 2005, 4-5.

LINKS

Table of n, a(n) for n=1..71.

FORMULA

a(n)=floor(sqrt(16n+20).

MAPLE

seq(floor(sqrt(16*n+20)), n=1..90);

CROSSREFS

Cf. A000267, A114458, A114460.

Sequence in context: A153604 A168679 A102304 * A168096 A030546 A028253

Adjacent sequences:  A114456 A114457 A114458 * A114460 A114461 A114462

KEYWORD

nonn

AUTHOR

Emeric Deutsch, Nov 28 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 18 02:17 EDT 2013. Contains 225419 sequences.