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A129540 Triangular numbers T such that T+10 is the next prime after T. 0
1711, 1891, 4851, 9591, 18721, 23653, 24753, 27261, 32131, 35511, 57291, 64261, 69751, 77421, 79401, 81003, 102831, 106491, 108811, 114003, 115921, 147153, 153181, 155403, 171991, 178503, 181503, 191271, 200661, 208981, 219453 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

MAPLE

a := proc (n) if nextprime((1/2)*n*(n+1)) = 10+(1/2)*n*(n+1) then (1/2)*n*(n+1) else end if end proc: seq(a(n), n = 1 .. 700); # Emeric Deutsch, Jun 20 2007

CROSSREFS

Cf. A000217, A129755.

Sequence in context: A222553 A062916 A241554 * A293480 A227218 A280113

Adjacent sequences:  A129537 A129538 A129539 * A129541 A129542 A129543

KEYWORD

nonn

AUTHOR

Zak Seidov, May 29 2007

EXTENSIONS

More terms from Emeric Deutsch, Jun 20 2007

STATUS

approved

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Last modified June 2 08:16 EDT 2020. Contains 334767 sequences. (Running on oeis4.)