A354460 The primes sums formed for each completed 2 X 2 square of numbers in A354453.

7, 13, 19, 23, 31, 29, 41, 37, 47, 53, 43, 59, 73, 61, 67, 71, 79, 83, 97, 101, 103, 89, 107, 113, 109, 127, 137, 139, 131, 149, 157, 151, 167, 163, 173, 179, 181, 191, 193, 199, 197, 211, 223, 227, 257, 229, 233, 251, 263, 239, 241, 269, 271, 281, 277, 283, 293, 307, 313, 311, 317, 331, 347, 337

Offset

1,1

Comments

See A354453 for further details.

Links

Table of n, a(n) for n=1..64.

Example

The first prime sum is 7, which is the sum of the innermost 2 X 2 square of values 4,2,0,1 in the square spiral shown in A354453.
The fourth prime sum is 23, which is the sum of the 2 X 2 square of values 0,1,8,14 in the square spiral shown in A354453. This is the first prime sum that differs from A337116.

Crossrefs

Cf. A354453, A337116, A354441, A257339, A354434, A000040.

Sequence in context: A340105 A309649 A088982 * A176406 A033561 A227030

Adjacent sequences: A354457 A354458 A354459 * A354461 A354462 A354463

Keyword

nonn

Author

Scott R. Shannon, May 31 2022

Status

approved