1/4 the number of arrangements of 9 nonzero numbers x(i) in -n..n with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
A189958
1/4 the number of arrangements of 9 nonzero numbers x(i) in -n..n with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
Terms
- a(0) =128a(1) =17888a(2) =393006a(3) =4014514a(4) =23257218a(5) =101599137a(6) =346371666a(7) =1012894742a(8) =2594438857a(9) =6057314932a(10) =12928069327a(11) =26059247016a(12) =49402250718a(13) =89428018287a(14) =155225765626a(15) =260730899098a(16) =422939460592a(17) =669282239159
External references
- oeis: A189958