id:A109738 - OEIS Search Results

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a(0)=1; for n>0, a(n) = a(n-1) S prime(n), where S is + if n is odd and a(n-1) is even, x if n is odd and a(n-1) is odd, - if n is even and a(n-1) is even, + if n is even and a(n-1) is odd.

+0
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1, 2, -1, -5, 2, 13, 26, 43, 62, 85, 114, 145, 182, 223, 266, 313, 366, 425, 486, 553, 624, 697, 776, 859, 948, 1045, 1146, 1249, 1356, 1465, 1578, 1705, 1836, 1973, 2112, 2261, 2412, 2569, 2732, 2899, 3072, 3251, 3432, 3623, 3816, 4013, 4212, 4423, 4646, 4873 (list; graph; listen)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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