A213200 a(n) = sum of next a(n-1) primes after a(n-1) with a(1) = 1.

1, 2, 8, 180, 135602, 140706863394

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Example

a(1) = 1, a(2) = 2, a(3) = 3 + 5 = 8, a(4) = 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 = 180.

Mathematica

NestList[Sum[Prime[i], {i, (b = PrimePi[#] + 1), b + # - 1}] &, 1, 5]

Crossrefs

Sequence in context: A350808 A009713 A265597 * A317794 A009377 A181234

Adjacent sequences: A213197 A213198 A213199 * A213201 A213202 A213203

Keyword

nonn,more

Author

Zak Seidov, Mar 01 2013

Status

approved