Number of partitions of n of the form a_1*b_1^2 + a_2*b_2^2 + ...; number of semisimple rings with p^n elements for any prime p.

A004101

Number of partitions of n of the form a_1*b_1^2 + a_2*b_2^2 + ...; number of semisimple rings with p^n elements for any prime p.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =8a(6) =13a(7) =18a(8) =29a(9) =40a(10) =58a(11) =79a(12) =115a(13) =154a(14) =213a(15) =284a(16) =391a(17) =514a(18) =690a(19) =900a(20) =1197a(21) =1549a(22) =2025a(23) =2600a(24) =3377a(25) =4306a(26) =5523a(27) =7000a(28) =8922a(29) =11235

External references