Number of nonnegative integer arrays of length n summing to n without equal adjacent values modulo 7.

A221320

Number of nonnegative integer arrays of length n summing to n without equal adjacent values modulo 7.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =14a(4) =30a(5) =76a(6) =188a(7) =444a(8) =1075a(9) =2656a(10) =6499a(11) =15904a(12) =39257a(13) =97012a(14) =239836a(15) =594484a(16) =1476309a(17) =3670470a(18) =9137025a(19) =22774518a(20) =56827616a(21) =141930316a(22) =354803429a(23) =887699408a(24) =2222657891a(25) =5569118954a(26) =13963300515a(27) =35031289966a(28) =87937202200a(29) =220862633536

External references