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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A100057 Sum of absolute differences of p(n) defined in A054065, oriented around a clock. 1
2, 4, 8, 12, 18, 24, 30, 40, 50, 60, 70, 80, 96, 112, 128, 144, 160, 176, 192, 208, 234, 260, 286, 312, 338, 364, 390, 416, 442, 468, 494, 520, 546, 588, 630, 672, 714, 756, 798, 840, 882, 924, 966, 1008, 1050, 1092, 1134, 1176, 1218, 1260, 1302, 1344, 1386 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..54.

FORMULA

Arrange p(n) of A054065 around a clock. a(n) = sum of absolute differences between terms. Alternatively, take the absolute difference between left and rightmost terms of p(n), A054065; and add to A100056(n).

EXAMPLE

a(4) = 8 since p(4) of A054065 = 2 4 1 3. Placing the terms in circular fashion and taking absolute differences: 2, 3, 2, 1; sum = 8.

CROSSREFS

Cf. A100056.

Sequence in context: A152125 A305694 A176562 * A007590 A080476 A256885

Adjacent sequences:  A100054 A100055 A100056 * A100058 A100059 A100060

KEYWORD

nonn

AUTHOR

Gary W. Adamson, Oct 31 2004

EXTENSIONS

Edited and extended by Ray Chandler, Apr 18 2009

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 July 15 16:09 EDT 2019. Contains 325049 sequences. (Running on oeis4.)