a(n) is the number of n-tosses having a run of 3 or more heads and a run of 3 or more tails for a fair coin.

A167826

a(n) is the number of n-tosses having a run of 3 or more heads and a run of 3 or more tails for a fair coin.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =2a(6) =8a(7) =26a(8) =74a(9) =194a(10) =482a(11) =1152a(12) =2674a(13) =6068a(14) =13524a(15) =29704a(16) =64460a(17) =138482a(18) =294988a(19) =623834a(20) =1311086a(21) =2740666a(22) =5702270a(23) =11815752a(24) =24395678a(25) =50209572a(26) =103048168a(27) =210965064a(28) =430938832a(29) =878534170

External references