Prime p₀= 1621529674510424851 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 60 66 60 24 6 42 42 6 24 60 66 60 (?)
a_n: 0 60 126 186 210 216 258 300 306 330 390 456 516
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 516
Found by: biodoc
db: batch=78, k=13, 60 66 60 24 6 42

STPT(10)	1621528398676474019	0 2 42 44 90 92 138 140 180 182	-1275833950832
SPT(16)	1621528650318034819	0 22 54 64 78 84 102 144 148 190 208 214 228 238 270 292	-1024192390032
SPT(16)	1621528820290227283	0 24 36 40 78 108 120 136 138 154 166 196 234 238 250 274	-854220197568
SPT(16)	1621529170843783027	0 22 24 54 100 180 210 270 274 334 364 444 490 520 522 544	-503666641824
SPT(16)	1621529195245108979	0 8 14 42 74 78 98 128 144 174 194 198 230 258 264 272	-479265315872
STPT(12)	1621529284042418237	0 2 42 44 102 104 222 224 282 284 324 326	-390468006614
SPT(16)	1621530015202674301	0 36 40 46 126 132 156 186 226 256 280 286 366 372 376 412	340692249450
SPT(16)	1621530167228722757	0 24 42 90 102 186 194 224 282 312 320 404 416 464 482 506	492718297906
STPT(10)	1621530892317386387	0 2 30 32 42 44 54 56 84 86	1217806961536
STPT(10)	1621531003809880517	0 2 54 56 72 74 90 92 144 146	1329299455666
STPT(10)	1621531326267495491	0 2 30 32 60 62 90 92 120 122	1651757070640