Prime p₀= 1489978995564663451 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 12 46 8 46 24 2 82 62 10 74 10 62 82 2 24 46 8 46 12 (?)
a_n: 0 12 58 66 112 136 138 220 282 292 366 376 438 520 522 546 592 600 646 658
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: 658
derived by truncating larger tuple
Found by: Skivelitis2
db: batch=78, k=20, 12 46 8 46 24 2 82 62 10 74

STPT(10)	1489977674830899437	0 2 30 32 42 44 54 56 84 86	-1320733764014
SPT(16)	1489977804229670843	0 48 86 176 204 246 260 266 288 294 308 350 378 468 506 554	-1191334992608
STPT(10)	1489978386226942277	0 2 12 14 42 44 72 74 84 86	-609337721174
SPT(16)	1489978490171157391	0 10 118 130 150 160 192 252 268 328 360 370 390 402 510 520	-505393506060
SPT(16)	1489978858833194441	0 8 38 66 122 158 176 200 228 252 270 306 362 390 420 428	-136731469010
SPT(24)	1489978995564663433	0 4 18 30 76 84 130 154 156 238 300 310 384 394 456 538 540 564 610 618 664 676 690 694	-18
TPT(14)	1489979510754623489	0 2 12 14 18 20 42 44 72 74 150 152 252 254	515189960038
SPT(16)	1489979569693772719	0 24 28 30 48 72 94 100 162 168 190 214 232 234 238 262	574129109268
SPT(16)	1489979623328379251	0 8 60 68 90 102 116 122 246 252 266 278 300 308 360 368	627763715800
SPT(16)	1489979841645969203	0 8 18 24 74 80 98 138 206 246 264 270 320 326 336 344	846081305752
SPT(16)	1489980469065126263	0 18 84 96 140 150 158 170 264 276 284 294 338 350 416 434	1473500462812
TPT(16)	1489980707094720887	0 2 12 14 54 56 90 92 132 134 144 146 222 224 270 272	1711530057436