a(n) is the smallest integer k such that the n-th (backward) difference of the partition sequence A000041 is positive from k onwards.
A155861
a(n) is the smallest integer k such that the n-th (backward) difference of the partition sequence A000041 is positive from k onwards.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =26a(4) =68a(5) =134a(6) =228a(7) =352a(8) =510a(9) =704a(10) =934a(11) =1204a(12) =1514a(13) =1866a(14) =2260a(15) =2702a(16) =3188a(17) =3722a(18) =4304a(19) =4936a(20) =5620a(21) =6354a(22) =7140a(23) =7980a(24) =8872a(25) =9822a(26) =10826a(27) =11888a(28) =13006a(29) =14182
External references
- oeis: A155861