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Search: id:A112782
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| A112782 |
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Beginning with 2, primes of the form: least multiple of the previous term followed by a 3. Beginning with 2, a(n) is the least prime of the form k*a(n-1)*10 + 3. |
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1
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| 2, 23, 233, 2333, 23333, 2566633, 51332663, 10266532603, 205330652063, 4106613041263, 2546100085583063, 636525021395765753, 388280263051417109333, 54359236827198395306623
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OFFSET
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1,1
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MATHEMATICA
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a[1]=2; a[n_]:=a[n]=(For[m=1, !PrimeQ[m a[n-1]*10+3], m++ ]; 10m*a[n-1]+3); Table[a[n], {n, 15}]
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CROSSREFS
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Sequence in context: A048549 A089703 A088094 this_sequence A093672 A118385 A098739
Adjacent sequences: A112779 A112780 A112781 this_sequence A112783 A112784 A112785
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 02 2006
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EXTENSIONS
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More terms from Joshua Zucker and Farideh Firoozbakht (f.firoozbakht(AT)math.ui.ac.ir), Jan 05 2006
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