A101771 Smallest k such that k^2 is equal to the sum of n distinct primes plus 1.

1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21, 24, 25, 26, 27, 30, 31, 32, 33, 36, 37, 38, 39, 42, 43, 44, 45, 48, 49, 50, 51, 54, 55, 56, 59, 60, 61, 62, 65, 66, 67, 70, 71, 72, 75, 76, 77, 80, 81, 82, 83, 86, 87, 88, 91, 92, 93, 96, 97, 98, 101, 102, 103, 106

Offset

0,2

Links

Table of n, a(n) for n=0..70.

Formula

a(n) = Sqrt(A100498(n)).

Crossrefs

Cf. A100498, A101772-A101775.

Sequence in context: A003247 A076216 A013919 * A035058 A350757 A004776

Adjacent sequences: A101768 A101769 A101770 * A101772 A101773 A101774

Keyword

nonn

Author

Ray Chandler, Jan 10 2005

Status

approved