(Translated by https://www.hiragana.jp/)
A110900 - OEIS
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A110900
Sum of the lesser of twin primes <= prime(10^n).
0
65, 4803, 584914, 59273184, 6098138012, 616905504491, 62144914085485, 6267868143394323, 630501829011138256, 63335169132014778363
OFFSET
1,1
COMMENTS
prime(n) = n-th prime number.
After the 3rd term, the next term is roughly 100 times the previous term.
EXAMPLE
3, 5, 11, 17, and 29 are lesser members of twin primes <= prime(10^1) = 29. These add up to 65, the first term of this sequence.
PROG
(PARI) lista(pmax) = {my(s = 0, pow = 10, prev = 2, k = 1); forprime(p = 3, pmax, k++; if(p == prev + 2, s += prev); if(k > pow, print1(s, ", "); pow *= 10); prev = p); } \\ Amiram Eldar, Jun 30 2024
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Cino Hilliard, Sep 20 2005
EXTENSIONS
a(9)-a(10) from Amiram Eldar, Jun 30 2024
STATUS
approved