A354461 The primes sums formed for each completed 3 X 3 square of numbers in A354435.

47, 61, 79, 71, 103, 89, 127, 107, 131, 173, 137, 149, 197, 163, 179, 191, 239, 193, 199, 211, 271, 233, 241, 263, 281, 347, 307, 311, 313, 317, 367, 331, 349, 379, 373, 389, 431, 359, 383, 401, 409, 419, 487, 421, 439, 461, 467, 479, 509, 569, 499, 503, 541, 523, 521, 547, 647, 563, 577, 593, 617

Offset

1,1

Comments

See A354435 for further details.

Links

Table of n, a(n) for n=1..61.

Example

The first prime sum is 47, which is the sum of the innermost 3 X 3 square of numbers 5,4,3,6,1,2,7,8,11 in the square spiral shown in A354435.
The ninth prime sum is 131, which is the sum of the 3 X 3 square of numbers 1,2,10,8,11,9,25,26,39 in the square spiral shown in A354435. This is the first sum to differ from A354442.

Crossrefs

Cf. A354435, A354442, A354441, A354453, A337116, A000040.

Sequence in context: A342093 A126980 A354442 * A039355 A043178 A043958

Adjacent sequences: A354458 A354459 A354460 * A354462 A354463 A354464

Keyword

nonn

Author

Scott R. Shannon, May 31 2022

Status

approved