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A237267
The positions of records in A236747.
0
1, 2, 5, 105, 585, 1041, 1590, 3582, 5460, 19425, 21450, 21540, 33495, 42315, 101745, 122265, 151710, 176190, 252525, 267435, 318780, 343800, 464100, 542640, 868140, 996765, 1080450, 1217370, 1322685, 1461495, 1477875, 1601985, 2523675, 2792790, 3512145
OFFSET
1,2
COMMENTS
Smallest k such that A236747(k) = n: 1, 2, 5, 105, 585, 1041, 1590, 3582, 6870, 5460,...
Smallest prime p such that A236747(p) = n: 2, 5, 593, 1889, 4457,...
CROSSREFS
Cf. A236747 (number of 0 <= k <= sqrt(n) such that n-k and n+k are both prime).
Sequence in context: A276110 A136106 A122696 * A266284 A215572 A023263
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(7)-a(9) from Michel Marcus, Feb 05 2014.
a(9)-a(35) from Giovanni Resta, Feb 09 2014
STATUS
approved