Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X m square.

A274582

Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X m square.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =10a(4) =24a(5) =51a(6) =109a(7) =222a(8) =452a(9) =890a(10) =1732a(11) =3298a(12) =6204a(13) =11470a(14) =20970a(15) =37842a(16) =67572a(17) =119368a(18) =208943a(19) =362389a(20) =623438a(21) =1064061a(22) =1802976a(23) =3033711a(24) =5071418a(25) =8424788a(26) =13913192a(27) =22847028a(28) =37315678a(29) =60631940

External references