Prime p₀= 378200882875462021 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 60 22 8 6 4 2 24 54 10 32 10 54 24 2 4 6 8 22 60 (?)
a_n: 0 60 82 90 96 100 102 126 180 190 222 232 286 310 312 316 322 330 352 412
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: 412
derived by truncating larger tuple
Found by: Cruncher Pete
db: batch=70, k=20, 60 22 8 6 4 2 24 54 10 32

TPT(12)	378200822921850029	0 2 12 14 48 50 132 134 138 140 162 164	-59953611992
SPT(14)	378200824907910779	0 8 14 62 74 78 84 158 164 168 180 228 234 242	-57967551242
TPT(12)	378200838217672079	0 2 30 32 150 152 162 164 192 194 318 320	-44657789942
SPT(14)	378200839329181129	0 10 22 30 48 100 114 148 162 214 232 240 252 262	-43546280892
TPT(12)	378200871528701729	0 2 72 74 102 104 138 140 210 212 258 260	-11346760292
SPT(22)	378200882875462001	0 20 80 102 110 116 120 122 146 200 210 242 252 306 330 332 336 342 350 372 432 452	-20
SPT(14)	378200883687199567	0 22 52 66 130 156 166 210 220 246 310 324 354 376	811737546
SPT(14)	378200897998770373	0 36 46 60 70 108 148 156 196 234 244 258 268 304	15123308352
SPT(14)	378200923546051391	0 48 56 60 62 86 90 128 132 156 158 162 170 218	40670589370
SPT(14)	378200925706059601	0 18 46 60 126 138 166 210 238 250 316 330 358 376	42830597580
TPT(12)	378200928789515771	0 2 18 20 30 32 36 38 78 80 90 92	45914053750
TPT(12)	378200932114806107	0 2 30 32 60 62 72 74 102 104 114 116	49239344086