Volume of Johnson square pyramid placed upright on cube (rounded down) with edge lengths equal to n.
A227221
Volume of Johnson square pyramid placed upright on cube (rounded down) with edge lengths equal to n.
Terms
- a(0) =1a(1) =9a(2) =33a(3) =79a(4) =154a(5) =266a(6) =423a(7) =632a(8) =900a(9) =1235a(10) =1644a(11) =2135a(12) =2714a(13) =3390a(14) =4170a(15) =5061a(16) =6071a(17) =7206a(18) =8475a(19) =9885a(20) =11443a(21) =13157a(22) =15034a(23) =17082a(24) =19307a(25) =21718a(26) =24322a(27) =27126a(28) =30137a(29) =33363
External references
- oeis: A227221