Prime p₀= 2212119446230680851 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 62 6 60 18 10 14 6 6 4 26 4 6 6 14 10 18 60 6 62 (?)
a_n: 0 62 68 128 146 156 170 176 182 186 212 216 222 228 242 252 270 330 336 398
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 398
Found by: Groo
db: batch=81, k=20, 62 6 60 18 10 14 6 6 4 26

SPT(16)	2212117997722269607	0 76 90 120 154 190 220 244 246 270 300 336 370 400 414 490	-1448508411244
STPT(10)	2212118319508848797	0 2 54 56 72 74 90 92 144 146	-1126721832054
TPT(14)	2212118598285526589	0 2 72 74 150 152 162 164 168 170 222 224 240 242	-847945154262
SPT(16)	2212118631680562889	0 4 30 48 124 130 148 154 174 180 198 204 280 298 324 328	-814550117962
STPT(10)	2212119112548856307	0 2 30 32 42 44 54 56 84 86	-333681824544
STPT(10)	2212119403043293481	0 2 78 80 108 110 138 140 216 218	-43187387370
SPT(16)	2212119519472506647	0 6 24 132 146 164 170 176 210 216 222 240 254 362 380 386	73241825796
STPT(10)	2212119993015846671	0 2 6 8 18 20 30 32 36 38	546785165820
SPT(16)	2212120033049910301	0 6 52 76 90 120 126 132 136 142 148 178 192 216 262 268	586819229450
SPT(16)	2212120421257982579	0 38 44 80 92 138 144 152 210 218 224 270 282 318 324 362	975027301728
SPT(16)	2212120549828277443	0 18 66 76 78 120 124 150 274 300 304 346 348 358 406 424	1103597596592