Triangular sequence produced from symmetrical power of two matrices of the general type: M={{1, 3, 7, 31}, {3, 1, 3, 7}, {7, 3, 1, 3}, {31, 7, 3, 1}} with symmetrical primes of the type 2^n-1 A000668 instead of the 2^n of A129964.
A130617
Triangular sequence produced from symmetrical power of two matrices of the general type: M={{1, 3, 7, 31}, {3, 1, 3, 7}, {7, 3, 1, 3}, {31, 7, 3, 1}} with symmetrical primes of the type 2^n-1 A000668 instead of the 2^n of A129964.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =-8a(4) =-2a(5) =1a(6) =60a(7) =64a(8) =3a(9) =-1a(10) =1232a(11) =-688a(12) =-1080a(13) =-4a(14) =1a(15) =10192a(16) =-51184a(17) =10584a(18) =18224a(19) =5a(20) =-1a(21) =-72056802048a(22) =40202473760a(23) =63561929808a(24) =248790864a(25) =-67127848a(26) =-6a(27) =1a(32) =-72928609100a(33) =17313844512
External references
- oeis: A130617