login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A096282 Sums of successive twin primes of order 2. 0
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; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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.

EXAMPLE

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.

PROG

(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]", "); ) }

CROSSREFS

Sequence in context: A121851 A154151 A049734 * A031407 A002505 A050772

Adjacent sequences:  A096279 A096280 A096281 * A096283 A096284 A096285

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jun 23 2004

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 21:56 EST 2012. Contains 205860 sequences.