a(n) is the number of ways the set {1^4, 2^4, ..., n^4} can be partitioned into two sets of equal sums.

A111253

a(n) is the number of ways the set {1^4, 2^4, ..., n^4} can be partitioned into two sets of equal sums.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =1a(16) =0a(17) =0a(18) =8a(19) =9a(20) =0a(21) =0a(22) =16a(23) =50a(24) =0a(25) =0a(26) =212a(27) =255a(28) =0a(29) =0

External references