Number of partitions of [2n] into pairs such that either their sum or their absolute difference is a prime (but not both).

A342155

Number of partitions of [2n] into pairs such that either their sum or their absolute difference is a prime (but not both).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =26a(6) =55a(7) =282a(8) =1520a(9) =2685a(10) =27005a(11) =171474a(12) =768123a(13) =5936728a(14) =43976303a(15) =207493790a(16) =2570789335a(17) =21669733984a(18) =136340261314

External references