A288172 a(n) = smallest number that is the sum of 2n - 1, 2n + 1, and 2n + 3 consecutive primes.

83, 311, 55813, 42161, 42161, 714295, 113469, 5539053, 20919, 1439643, 7134703, 13432571, 3337639, 6082489, 25241217, 25241217, 2389687, 54309171, 4142423, 63388405, 21570897, 15843991, 62196365, 233917295, 11679841, 96905683, 229821375, 460000131, 125571943

Offset

1,1

Links

Table of n, a(n) for n=1..29.

Example

n=1: 83 = A000040(23) = A034961(9) = A034964(5) = 23+29+31 = 11+13+17+19+23.
n=20: 63388405 is the sum of 39, 41 and 43 consecutive primes, A000040(122889)+...+A000040(122889+38) = A000040(117360)+...+A000040(122889+40) = A000040(112314)+...+A000040(112314+42).

Crossrefs

Cf. A213174.

Sequence in context: A251082 A141570 A334644 * A341338 A031433 A177099

Adjacent sequences: A288169 A288170 A288171 * A288173 A288174 A288175

Keyword

nonn

Author

Zak Seidov, Jun 06 2017

Extensions

More terms from Giovanni Resta, Jun 13 2017

Status

approved