Solution to the non-squashing boxes problem (version 2).

Terms

a(0) =2a(1) =4a(2) =8a(3) =16a(4) =28a(5) =46a(6) =72a(7) =108a(8) =156a(9) =218a(10) =298a(11) =398a(12) =524a(13) =678a(14) =868a(15) =1096a(16) =1372a(17) =1698a(18) =2086a(19) =2538a(20) =3070a(21) =3684a(22) =4398a(23) =5214a(24) =6156a(25) =7226a(26) =8450a(27) =9830a(28) =11400a(29) =13162