Number of triples (p,q,r) of partitions such that p is a partition of n and r <= q <= p (by diagram containment).

A305023

Number of triples (p,q,r) of partitions such that p is a partition of n and r <= q <= p (by diagram containment).

Terms

    a(0) =1a(1) =3a(2) =12a(3) =34a(4) =100a(5) =246a(6) =630a(7) =1433a(8) =3298a(9) =7124a(10) =15283a(11) =31358a(12) =64100a(13) =126406a(14) =247587a(15) =472864a(16) =895548a(17) =1661690a(18) =3059734a(19) =5538991a(20) =9950980a(21) =17631398a(22) =31004004a(23) =53878023a(24) =92979904a(25) =158806852a(26) =269448833a(27) =453099946a(28) =757152246a(29) =1255180557

External references