Number of different partitions of the set {1, 2, ..., n} into an odd number of blocks such that each block contains at least 2 elements.

A097762

Number of different partitions of the set {1, 2, ..., n} into an odd number of blocks such that each block contains at least 2 elements.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =16a(6) =106a(7) =491a(8) =1919a(9) =7771a(10) =40261a(11) =264892a(12) =1871728a(13) =12988977a(14) =88413417a(15) =612354549a(16) =4492798353a(17) =35529920764a(18) =299329573882

External references