Number of compositions of n into n nonnegative parts such that their xor-sum is not zero.

A372871

Number of compositions of n into n nonnegative parts such that their xor-sum is not zero.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =10a(4) =28a(5) =126a(6) =236a(7) =1716a(8) =4376a(9) =24310a(10) =71452a(11) =352716a(12) =1036432a(13) =5200300a(14) =15661088a(15) =77558760a(16) =234338224a(17) =1166803110a(18) =3538500140a(19) =17672631900a(20) =53754680928a(21) =269128937220a(22) =811847006192

External references