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Search: id:A092614
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| A092614 |
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Let p_i(n) = n-th prime ending in i; then a(n) = (p_1(n) + p_3(n) + p_7(n) + p_9(n))/10. |
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4
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| 4, 9, 16, 23, 28, 38, 46, 53, 61, 71, 78, 87, 97, 111, 118, 128, 133, 146, 154, 161, 169, 186, 193, 200, 219, 228, 239, 248, 259, 267, 274, 287, 298, 313, 319, 331, 348, 358, 372, 378, 392, 400, 408, 417, 426, 447, 461, 466, 475, 487, 502, 515, 523, 537, 543
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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A092613/10.
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MATHEMATICA
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Table[ A092613[n]/10, {n, 60}] (from Robert G. Wilson v Apr 13 2004)
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PROGRAM
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(PARI) {k=56; m=matrix(9, k); v=[1, 0, 1, 0, 0, 0, 1, 0, 1]; c=vector(9); p=2; d=0; while(d<4, p=nextprime (p+1); r=p%10; c[r]++; if(c[r]<=k, m[r, c[r]]=p; if(c[r]==k, d++))); w=v*m/10; for(j=1, k, print1(w[j], ", "))}
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CROSSREFS
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First difference in A093723.
Adjacent sequences: A092611 A092612 A092613 this_sequence A092615 A092616 A092617
Sequence in context: A010460 A022822 A001639 this_sequence A085899 A027874 A009850
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KEYWORD
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easy,nonn
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AUTHOR
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Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Apr 11 2004
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EXTENSIONS
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More terms and PARI code from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 12 2004
More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 13 2004
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