Prime p₀= 2174899818992171983 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 10 24 32 42 46 12 14 24 6 4 6 24 14 12 46 42 32 24 10 (?)
a_n: 0 10 34 66 108 154 166 180 204 210 214 220 244 258 270 316 358 390 414 424
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: 424
derived by truncating larger tuple
Found by: Skyman
db: batch=81, k=20, 10 24 32 42 46 12 14 24 6 4

STPT(10)	2174898268512810677	0 2 42 44 72 74 102 104 144 146	-1550479361306
SPT(16)	2174899051336485571	0 6 16 30 60 70 82 130 138 186 198 208 238 252 262 268	-767655686412
STPT(10)	2174899118597659919	0 2 12 14 90 92 168 170 180 182	-700394512064
STPT(10)	2174899228319973929	0 2 12 14 90 92 168 170 180 182	-590672198054
STPT(10)	2174899732004200307	0 2 12 14 42 44 72 74 84 86	-86987971676
SPT(22)	2174899818992171951	0 32 42 66 98 140 186 198 212 236 242 246 252 276 290 302 348 390 422 446 456 488	-32
STPT(10)	2174899978000609961	0 2 6 8 48 50 90 92 96 98	159008437978
STPT(10)	2174900298803403887	0 2 42 44 72 74 102 104 144 146	479811231904
SPT(16)	2174900333707672457	0 24 32 84 90 104 116 132 134 150 162 176 182 234 242 266	514715500474
STPT(10)	2174900527849600169	0 2 12 14 90 92 168 170 180 182	708857428186
SPT(16)	2174900769691800119	0 104 138 140 188 198 210 224 228 242 254 264 312 314 348 452	950699628136
STPT(10)	2174900909990874431	0 2 36 38 78 80 120 122 156 158	1090998702448