Numbers of squares and rectangles of all sizes in 3*n*(n+1)/2-ominoes in form of three-quarters of Aztec diamonds.

A338996

Numbers of squares and rectangles of all sizes in 3*n*(n+1)/2-ominoes in form of three-quarters of Aztec diamonds.

Terms

    a(0) =0a(1) =5a(2) =27a(3) =85a(4) =205a(5) =420a(6) =770a(7) =1302a(8) =2070a(9) =3135a(10) =4565a(11) =6435a(12) =8827a(13) =11830a(14) =15540a(15) =20060a(16) =25500a(17) =31977a(18) =39615a(19) =48545a(20) =58905a(21) =70840a(22) =84502a(23) =100050a(24) =117650a(25) =137475a(26) =159705a(27) =184527a(28) =212135a(29) =242730

External references