Number of subsets of 6 integers between 1 and n such that their sum is 1 modulo n.

Terms

a(0) =1a(1) =4a(2) =9a(3) =22a(4) =42a(5) =78a(6) =132a(7) =217a(8) =333a(9) =504a(10) =728a(11) =1035a(12) =1428a(13) =1944a(14) =2583a(15) =3399a(16) =4389a(17) =5616a(18) =7084a(19) =8866a(20) =10962a(21) =13468a(22) =16380a(23) =19806a(24) =23751a(25) =28336a(26) =33561a(27) =39576a(28) =46376a(29) =54126