Prime p₀= 2260227420388445021 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 12 8 10 12 48 36 14 36 76 36 14 36 48 12 10 8 12 (?)
a_n: 0 12 20 30 42 90 126 140 176 252 288 302 338 386 398 408 416 428
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 428
Found by: JayPi
db: batch=81, k=18, 12 8 10 12 48 36 14 36 76

STPT(10)	2260226091898269791	0 2 6 8 18 20 30 32 36 38	-1328490175230
STPT(10)	2260226306812658279	0 2 18 20 30 32 42 44 60 62	-1113575786742
STPT(10)	2260226323652360807	0 2 42 44 72 74 102 104 144 146	-1096736084214
SPT(16)	2260226390950990201	0 10 42 48 60 70 102 132 148 178 210 220 232 238 270 280	-1029437454820
STPT(10)	2260226920702221827	0 2 42 44 72 74 102 104 144 146	-499686223194
SPT(16)	2260227082026801571	0 28 106 150 162 166 232 276 292 336 402 406 418 462 540 568	-338361643450
TPT(14)	2260227534027007481	0 2 60 62 96 98 138 140 156 158 180 182 210 212	113638562460
STPT(10)	2260227732517485329	0 2 18 20 30 32 42 44 60 62	312129040308
SPT(16)	2260227733718404069	0 28 42 48 60 102 118 120 130 132 148 190 202 208 222 250	313329959048
STPT(10)	2260227782038485869	0 2 78 80 120 122 162 164 240 242	361650040848
SPT(16)	2260228082891677699	0 12 30 34 42 52 100 142 150 192 240 250 258 262 280 292	662503232678