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 A057753 Total area of all polyominoes with perimeter 2n. 1
 1, 2, 10, 27, 150, 641, 3796, 21525, 134863, 846159, 5464173, 35548106, 234007149, 1551388944, 10361158723 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 LINKS Andrew Clarke, Isoperimetrical Polyominoes EXAMPLE a(2*n=4) = 1 with area 1: 1*1=1. a(2*n=6) is 1 with area 2: 1*2=2. a(2*n=8) is 2 with area 3, 1 with area 4: 2*3+4=10. a(2*n=10) is 4 with area 4, 1 with area 5, 1 with area 6: 4*4+5+6=27. a(2*n=12) = 11*5 +7*6 +4*7 +2*8 +1*9 = 150. a(2*n=14) = 27*6 +21*7 +21*8+ 9*9 + 6*10 +1*11 + 1*12 = 641. - R. J. Mathar, Feb 18 2021 a(2*n=16) = 7*83 + 8*91 + 9*89 + 10*67 + 11*45 + 12*23 + 13*11 + 14*4 + 15*2 + 16*1. - John Mason, Feb 18 2021 CROSSREFS Cf. A057730. Sequence in context: A327841 A196648 A220700 * A060515 A109723 A053594 Adjacent sequences: A057750 A057751 A057752 * A057754 A057755 A057756 KEYWORD nonn,more AUTHOR N. J. A. Sloane, Nov 04 2000 EXTENSIONS Link updated by William Rex Marshall, Dec 16 2009 Offset set to 2 by R. J. Mathar, Feb 18 2021 a(8) from John Mason, Feb 18 2021 a(9)-a(16) from John Mason, Sep 08 2022 STATUS approved

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Last modified January 30 12:49 EST 2023. Contains 359945 sequences. (Running on oeis4.)