The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A176222 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A176222

a(n) = (n^2 - 3*n + 1 + (-1)^n)/2.
(history; published version)

#63 by Harvey P. Dale at Sun Jan 14 16:36:49 EST 2024

STATUS

editing

approved

#62 by Harvey P. Dale at Sun Jan 14 16:36:44 EST 2024

MATHEMATICA

LinearRecurrence[{2, 0, -2, 1}, {0, 3, 5, 10}, 90] (* Harvey P. Dale, Jan 14 2024 *)

STATUS

approved

editing

#61 by Joerg Arndt at Sat Jul 16 07:12:49 EDT 2022

STATUS

reviewed

approved

#60 by Andrey Zabolotskiy at Sat Jul 16 04:16:20 EDT 2022

STATUS

proposed

reviewed

#59 by Aaron Khan at Thu Jul 14 10:33:55 EDT 2022

STATUS

editing

proposed

#58 by Aaron Khan at Thu Jul 14 10:33:09 EDT 2022

CROSSREFS

Cf. A000211, A052928, A128209, A250000 (queens on a chessboard), A002620 (rooks on a chessboard), A355509 (knights on a chessboard).

STATUS

approved

editing

#57 by Joerg Arndt at Wed Jul 13 06:50:48 EDT 2022

STATUS

reviewed

approved

#56 by Kevin Ryde at Wed Jul 13 04:55:28 EDT 2022

STATUS

proposed

reviewed

#55 by Kevin Ryde at Wed Jul 13 04:53:53 EDT 2022

STATUS

editing

proposed

#54 by Kevin Ryde at Wed Jul 13 04:53:16 EDT 2022

EXAMPLE

.

From Aaron Khan, Jul 05 2022: (Start)

(End)

STATUS

proposed

editing