OFFSET
1,1
COMMENTS
a(1) = 682775764735680, minimal 4 X 4 pandiagonal magic squares of consecutive primes, see A245721.
LINKS
Dmitry Petukhov, Table of n, a(n) for n = 1..56
Discussion at the scientific forum dxdy.ru (in Russian)
BOINC project to search all up to 2^64
Natalia Makarova, Pandiagonal squares of order 4 composed of consecutive prime numbers
EXAMPLE
a(2) = 47184892811061120:
11796223202765101 +
0 148 232 336
268 300 36 112
126 22 358 210
322 246 90 58
a(5) = 76685404549625256:
19171351137406219 +
0 100 112 168
142 138 30 70
78 22 190 90
160 120 48 52
CROSSREFS
KEYWORD
nonn
AUTHOR
Dmitry Petukhov, Mar 20 2015
EXTENSIONS
a(5) added by Dmitry Petukhov, Mar 25 2015
a(6), a(7) from an anonymous participant in the project, added by Natalia Makarova, Jul 16 2015
a(8) from Alexander Andreyev, added by Natalia Makarova, Mar 29 2016
a(9) from Alexander Andreyev, a(10) from an anonymous participant in the project, a(11) from Denis Ivanov, added by Natalia Makarova, Jun 13 2016
a(12)-a(18) are confirmed by BOINC project, Mar 19 2017
a(19)-a(32) are confirmed by BOINC project, Apr 06 2017
a(33)-a(56) are confirmed and added by BOINC project, May 17 2017
STATUS
approved