Prime p₀= 1404207690618072133 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 34 14 48 28 56 18 18 10 8 16 8 10 18 18 56 28 48 14 34 (?)
a_n: 0 34 48 96 124 180 198 216 226 234 250 258 268 286 304 360 388 436 450 484
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: 484
Found by: vinn@[CNT]
db: batch=78, k=20, 34 14 48 28 56 18 18 10 8 16

SPT(16)	1404205905718067471	0 6 8 50 92 96 116 132 236 252 272 276 318 360 362 368	-1784900004662
SPT(16)	1404206395372747913	0 18 30 36 56 60 78 90 116 128 146 150 170 176 188 206	-1295245324220
SPT(16)	1404206529522152567	0 84 96 144 150 186 210 212 264 266 290 326 332 380 392 476	-1161095919566
STPT(10)	1404206898730536737	0 2 42 44 72 74 102 104 144 146	-791887535396
STPT(10)	1404206948989105109	0 2 30 32 60 62 90 92 120 122	-741628967024
SPT(16)	1404207317050679879	0 2 48 78 92 108 110 122 138 150 152 168 182 212 258 260	-373567392254
SPT(16)	1404208358946263551	0 6 18 22 30 36 42 58 120 136 142 148 156 160 172 178	668328191418
STPT(10)	1404208810530194489	0 2 42 44 60 62 78 80 120 122	1119912122356
TPT(14)	1404208936199964281	0 2 30 32 60 62 228 230 246 248 258 260 270 272	1245581892148
STPT(10)	1404209241675131387	0 2 60 62 72 74 84 86 144 146	1551057059254
SPT(16)	1404209561369896361	0 2 6 12 42 138 182 240 248 306 350 446 476 482 486 488	1870751824228