Number of squares of all sizes in polyominoes obtained by union of two pyramidal figures (A092498) with intersection equals A002623.

A260918

Number of squares of all sizes in polyominoes obtained by union of two pyramidal figures (A092498) with intersection equals A002623.

Terms

    a(0) =0a(1) =1a(2) =5a(3) =15a(4) =33a(5) =60a(6) =100a(7) =154a(8) =224a(9) =313a(10) =423a(11) =555a(12) =713a(13) =898a(14) =1112a(15) =1358a(16) =1638a(17) =1953a(18) =2307a(19) =2701a(20) =3137a(21) =3618a(22) =4146a(23) =4722a(24) =5350a(25) =6031a(26) =6767a(27) =7561a(28) =8415a(29) =9330

External references