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A048852
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Difference between b^2 (in c^2=a^2+b^2) and product of successive prime pairs.
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2
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0, 3, 10, 14, 44, 26, 68, 38, 92, 174, 62, 222, 164, 86, 188, 318, 354, 122, 402, 284, 146, 474, 332, 534, 776, 404, 206, 428, 218, 452, 1778, 524, 822, 278, 1490, 302, 942, 978, 668, 1038, 1074, 362, 1910, 386, 788, 398, 2532, 2676, 908, 458, 932, 1434, 482
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OFFSET
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0,2
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LINKS
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FORMULA
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Find b^2 in Pythagorean formula c^2=a^2+b^2. Subtract product of successive prime pair at same a(n) beginning at 2*2.
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EXAMPLE
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a(3)=10. Product of 3rd prime pair 3*5=15 (after 2*2=4 and 2*3=6). b^2=25 (in c^2=a^2+b^2) where c^2=34 and a^2=9. Then 25-15=10.
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MATHEMATICA
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With[{P=Prime}, Table[If[n==0, 0, P[n+1]*(P[n+1]-P[n])], {n, 0, 60}]] (* G. C. Greubel, Feb 22 2024 *)
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PROG
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(Magma) [0] cat [NthPrime(n+1)*(NthPrime(n+1)-NthPrime(n)): n in [1..60]]; // G. C. Greubel, Feb 22 2024
(SageMath) p=nth_prime; [0]+[p(n+1)*(p(n+1)-p(n)) for n in range(1, 61)] # G. C. Greubel, Feb 22 2024
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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