login
The OEIS is supported by the many generous donors to the OEIS Foundation.
A351240
Numerator of the maximal sum of inverse squares of the singular values of symmetric Toeplitz anti-Hadamard matrices of order n.
3
1, 2, 7, 10, 37, 34, 107, 262, 661, 2236, 5665, 13350, 35141, 260188, 382614, 418134, 9552743681459, 83369851038, 785598689
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..19.
R. L. Graham and N. J. A. Sloane, Anti-Hadamard matrices, Linear Alg. Applic., 62 (1984), 113-137.
CROSSREFS
Cf. A005312, A005313, A351241 (denominator).
Sequence in context: A015963 A293002 A056656 * A151346 A247166 A110739
Adjacent sequences: A351237 A351238 A351239 * A351241 A351242 A351243
KEYWORD
nonn,frac,more
AUTHOR
Stefano Spezia, Feb 05 2022
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified April 12 21:33 EDT 2026. Contains 394621 sequences.
License Agreements, Terms of Use, Privacy Policy