Take the square prime spiral 11 7 5 13 2 3 17 19 23 and riff on the theta series as follows: 2q^0 + (13*3*7*19)q^1 + (11*5*17*23)q^2+...
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Take the square prime spiral 11 7 5 13 2 3 17 19 23 and riff on the theta series as follows: 2q^0 + (13*3*7*19)q^1 + (11*5*17*23)q^2+...