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Revision History for A000378

(Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Sums of three squares: numbers of the form x^2 + y^2 + z^2.
(history; published version)
#116 by Michael De Vlieger at Sat Oct 05 14:05:34 EDT 2024
STATUS

proposed

approved

#115 by Stefano Spezia at Sat Oct 05 12:20:02 EDT 2024
STATUS

editing

proposed

#114 by Stefano Spezia at Sat Oct 05 09:45:44 EDT 2024
REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, Springer, 1st edition, 1981. See section C20.

STATUS

approved

editing

#113 by Michael De Vlieger at Mon Nov 07 07:41:15 EST 2022
STATUS

reviewed

approved

#112 by Joerg Arndt at Mon Nov 07 02:13:45 EST 2022
STATUS

proposed

reviewed

#111 by Mohammed Yaseen at Mon Nov 07 00:43:39 EST 2022
STATUS

editing

proposed

#110 by Mohammed Yaseen at Mon Nov 07 00:41:24 EST 2022
COMMENTS

The selection rule for the planes with Miller indices (hkl) to undergo X-ray diffraction in a simple cubic lattice is h^2+k^2+l^2 = N where N is a term of this sequence. See A004014 for f.c.c. lattice. - Mohammed Yaseen, Nov 06 2022

#109 by Mohammed Yaseen at Mon Nov 07 00:36:46 EST 2022
COMMENTS

The selection rule for the planes with Miller indices (hkl) to undergo X-ray diffraction in a simple cubic lattice is h^2+k^2+l^2 = N where N is a term of this sequence. See A004014 for f.c.c. - Mohammed Yaseen, Nov 06 2022

#108 by Mohammed Yaseen at Sun Nov 06 23:25:15 EST 2022
COMMENTS

The selection rule for the planes with Miller indices (hkl) to undergo X-ray diffraction in a simple cubic lattice is h^2+k^2+l^2 = N where N is a term of this sequence. - Mohammed Yaseen, Nov 06 2022

STATUS

approved

editing

#107 by Alois P. Heinz at Mon Jun 27 12:19:39 EDT 2022
STATUS

proposed

approved