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Search: id:A135491
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A135491 Number of ways to toss a coin n times and not get a run of four. +0
3
2, 4, 8, 14, 26, 48, 88, 162, 298, 548, 1008, 1854, 3410, 6272, 11536, 21218, 39026, 71780, 132024, 242830, 446634, 821488, 1510952, 2779074, 5111514, 9401540, 17292128, 31805182, 58498850, 107596160, 197900192, 363995202, 669491554 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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