a(n) is the number of n-tosses having a run of 3 or more heads for a fair coin (i.e., probability is a(n)/2^n).
A050231
a(n) is the number of n-tosses having a run of 3 or more heads for a fair coin (i.e., probability is a(n)/2^n).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =3a(4) =8a(5) =20a(6) =47a(7) =107a(8) =238a(9) =520a(10) =1121a(11) =2391a(12) =5056a(13) =10616a(14) =22159a(15) =46023a(16) =95182a(17) =196132a(18) =402873a(19) =825259a(20) =1686408a(21) =3438828a(22) =6999071a(23) =14221459a(24) =28853662a(25) =58462800a(26) =118315137a(27) =239186031a(28) =483072832a(29) =974791728
External references
- oeis: A050231