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Search: id:A096282
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| A096282 |
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Sums of successive twin primes of order 2. |
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+0
1
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| 18, 22, 30, 42, 54, 66, 84, 108, 132, 156, 186, 222, 252, 276, 318, 378, 414, 426, 462, 522, 564, 588, 630, 690, 732, 756, 774, 786, 822, 882, 924, 948, 990, 1050, 1092, 1116, 1158, 1218, 1284, 1356, 1464, 1608, 1692, 1716, 1758, 1818, 1387
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Order here refers to the depth of the iterations in successive sums. Order 0 is the twin primes, order 1 is the sums of order 0, order 2 is the sums of order 1 etc.
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EXAMPLE
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The twin prime quartet 3,5,5,7 has the first order sums 8,10,12 and the 2nd order sums 18,22 the first twi terms in the sequence.
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PROGRAM
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(PARI) \Sums of successive twin primes. = terms, m = order of sums. sucsumstw(n, m) = { local(a, b, i, j, k, p); a = vector(1001); b = vector(1001); p=1; forprime(j=3, n, if(isprime(j+2), a[p] = j; a[p+1] = j+2; p+=2; ) ); for(i=1, m, for(j=1, n+n, b[j] = a[j]+ a[j+1]; ); a=b; ); for(k=1, p-2, print1(a[k]", "); ) }
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CROSSREFS
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Sequence in context: A121851 A154151 A049734 this_sequence A031407 A002505 A050772
Adjacent sequences: A096279 A096280 A096281 this_sequence A096283 A096284 A096285
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Jun 23 2004
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