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A068516 Number of squares (of another matrix) in the group GL(2,Z_n) described in sequence A000252. 1

%I #13 Jul 03 2022 06:45:35

%S 3,16,16,162,48,696,104,1236,486,4680,256,9366,2088,2592,1342,28296,

%T 3708,44640,2592,11136,14040,97416,1664,100410,28098,99936,11136,

%U 250110,7776,327840,20924,74880,84888,112752,19776,671346,133920,149856,16848

%N Number of squares (of another matrix) in the group GL(2,Z_n) described in sequence A000252.

%C The sequence is multiplicative. This is the 2-dimensional analog of A046073.

%Y Cf. A000252, A046073, A068197.

%K nonn,mult

%O 2,1

%A Sharon Sela (sharonsela(AT)hotmail.com), Mar 19 2002

%E Terms a(21) and beyond from _Andrey Zabolotskiy_, Jul 02 2022

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Last modified March 3 04:18 EST 2024. Contains 370499 sequences. (Running on oeis4.)