A293697 a(n) is the sum of prime numbers between 2^n+1 and 2^(n+1).

2, 3, 12, 24, 119, 341, 1219, 4361, 16467, 57641, 208987, 780915, 2838550, 10676000, 39472122, 148231324, 559305605, 2106222351, 7995067942, 30299372141, 115430379568, 440354051430, 1683364991290, 6448757014608, 24754017328490

Offset

0,1

Links

Table of n, a(n) for n=0..24.

Mathematica

Table[Plus @@
  Table[Prime[i], {i, PrimePi[2^(n)] + 1, PrimePi[2^(n + 1)]}], {n, 0,
   24}]

Crossrefs

Cf. A036378 (number of primes summed).

Cf. A293696 (triangle of partial sums).

Sequence in context: A320173 A107928 A130337 * A084728 A099429 A049601

Adjacent sequences: A293694 A293695 A293696 * A293698 A293699 A293700

Keyword

nonn

Author

Olivier Gérard, Oct 15 2017

Status

approved