Prime p₀= 1554754591438935637 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 4 2 28 12 38 28 90 18 12 152 12 18 90 28 38 12 28 2 4 (?)
a_n: 0 4 6 34 46 84 112 202 220 232 384 396 414 504 532 570 582 610 612 616
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: 616
derived by truncating larger tuple
Found by: crashtech
db: batch=78, k=20, 4 2 28 12 38 28 90 18 12 152

STPT(10)	1554753755771993477	0 2 30 32 42 44 54 56 84 86	-835666942160
STPT(10)	1554754120340741867	0 2 30 32 42 44 54 56 84 86	-471098193770
STPT(10)	1554754248252064127	0 2 90 92 102 104 114 116 204 206	-343186871510
SPT(16)	1554754297521918541	0 28 70 76 96 112 132 138 250 256 276 292 312 318 360 388	-293917017096
STPT(10)	1554754300810266371	0 2 6 8 48 50 90 92 96 98	-290628669266
SPT(22)	1554754591438935617	0 20 24 26 54 66 104 132 222 240 252 404 416 434 524 552 590 602 630 632 636 656	-20
SPT(16)	1554754770305620391	0 30 50 68 72 96 110 158 180 228 242 266 270 288 308 338	178866684754
STPT(10)	1554754958700884777	0 2 42 44 72 74 102 104 144 146	367261949140
STPT(10)	1554754981809229157	0 2 12 14 42 44 72 74 84 86	390370293520
STPT(10)	1554755009298038027	0 2 30 32 42 44 54 56 84 86	417859102390
TPT(14)	1554755023407974627	0 2 72 74 150 152 192 194 204 206 252 254 264 266	431969038990
STPT(10)	1554755040561598619	0 2 42 44 120 122 198 200 240 242	449122662982