Smallest k for which a chain of linked rods of length 1, ..., k can be folded in half in exactly n dictinct ways.

A390056

Smallest k for which a chain of linked rods of length 1, ..., k can be folded in half in exactly n dictinct ways.

Terms

    a(0) =3a(1) =8a(2) =20a(3) =35a(4) =84a(5) =99a(6) =195a(7) =455a(8) =459a(9) =935a(10) =440a(11) =539a(12) =1595a(13) =1484a(14) =1364a(15) =1700a(16) =4004a(17) =5075a(18) =1539a(19) =3059a(20) =6075a(21) =8099a(22) =4199a(23) =15180a(24) =7020a(25) =9800a(26) =10556a(27) =14651a(28) =7524a(29) =45539

External references