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A151557 Squares which are the sum of two or more consecutive squares. 7
25, 841, 4900, 5929, 8464, 11236, 19044, 20449, 24964, 28561, 33124, 38025, 60025, 64009, 75076, 127449, 148225, 170569, 184900, 193600, 245025, 281961, 422500, 425104, 429025, 461041, 524176, 620944, 632025, 970225, 1024144, 1044484, 1113025, 1283689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..5077 (terms < 10^15)

Thomas Andrews, Sum of consecutive squares equal to a square

K. S. Brown, Sum of Consecutive Nth Powers Equals an Nth Power

Index entries for sequences related to sums of squares

FORMULA

a(n) = A097812(n)^2.

EXAMPLE

25 = 5^2 = 3^2 + 4^2

841 = 29^2 = 20^2 + 21^2

4900 is the sum of the first 24 squares.

MATHEMATICA

(* First run the program for A097812 *) Union[A097812]^2 (* Alonso del Arte, Nov 19 2012 *)

CROSSREFS

Cf. A001032. Superset is A174069.

Sequence in context: A183879 A246761 A122142 * A008844 A251925 A181892

Adjacent sequences:  A151554 A151555 A151556 * A151558 A151559 A151560

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 21 2009

STATUS

approved

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Last modified November 16 04:54 EST 2018. Contains 317257 sequences. (Running on oeis4.)