Record history for SP15
Base Prime	Pattern	Type	Digits	When	Discoverer
14354792166345299956567113728 • 43# • 2n − 1	n = 0..14	CC, 1st kind	47	31 Dec 2015	Andrey Balyakin
14366587870229772953764096 • 43# • 2n − 1	n = 0..14	CC, 1st kind	44	31 Dec 2015	Andrey Balyakin
27353790674175627273118204975428644651730 • 2n − 1	n = 0..14	CC, 1st kind	43	25 Apr 2014	Jaroslaw Wroblewski
10004646546202610858599716515809907 + d	d = 0, 2, 6, 12, 14, 20, 24, 26, 30, 36, 42, 44, 50, 54, 56	Tuplet	35	2 Sep 2012	Roger Thompson
28320350134887132315879689643840 • 2n + 1	n = 0..14	CC, 2nd kind	34	17 Jun 2008	Jaroslaw Wroblewski
107173714602413868775303366934621 + d	d = 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48, 50, 56	Tuplet	33	14 Apr 2008	Jens Kruse Andersen
99999999948164978600250563546411 + d	d = 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48, 50, 56	Tuplet	32	1 Dec 2004	Jörg Waldvogel & Peter Leikauf
1251030012595955901312188450381 + d	d = 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48, 50, 56	Tuplet	31	16 Oct 2003	Hans Rosenthal & Jens Kruse Andersen
999999999962618227626700812281 + d	d = 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48, 50, 56	Tuplet	30	23 Nov 2000	Jörg Waldvogel & Peter Leikauf