Number of compositions (ordered partitions) of n into square pyramidal numbers (A000330).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =4a(8) =5a(9) =6a(10) =8a(11) =11a(12) =15a(13) =20a(14) =27a(15) =36a(16) =48a(17) =64a(18) =85a(19) =114a(20) =153a(21) =205a(22) =274a(23) =365a(24) =487a(25) =651a(26) =871a(27) =1165a(28) =1557a(29) =2080