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A111107 Smallest prime sequence possible such that its binomial transform consists only of primes. 0
2, 3, 5, 11, 13, 29, 43, 53, 59, 71, 79, 83, 103, 113, 139, 173, 181, 227, 269, 277, 317, 383, 463, 509, 673, 701, 751, 863, 967, 977, 1187, 1201, 1493, 1531, 1609, 1637, 1801, 2153, 2221, 2239, 2371, 2377, 2543, 2557, 2683 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

COMMENTS

In the standard binomial transform of the primes most of the terms are composite.

FORMULA

Sum of right diagonal (end number of each delta row) of transform + next prime of the above sequence creates the next transform prime.

EXAMPLE

This is the binomial transform of the new sequence.

2,5,13,37,101,271,727,1931,5003,12547,30449,71761,165037,

372149,826303,1813219,3944921,8533073,18393821,39588071,

85192381,183479291,395667617,854417989,1847225579,3996807053,

8650687127,18721431499,40496966207,87538925959,189076973699,

408090258677,880275573349,1898072186453,4091892797737,

8820984877351,19015949525137,40992990314189,88355012668999,

190364989602967,409882270030033,881700809985239,

1894318010182909,4063965944848079,8704271352438569,..

The prime 7 and various larger primes are missing from the new sequence because the transform would not consist of primes. For example,

2,5,13,33

3,8 20

5,12

7

and 33 is not prime, so we must eliminate 7.

CROSSREFS

Cf. A007443.

Sequence in context: A032024 A131741 A096650 * A186641 A129201 A137692

Adjacent sequences:  A111104 A111105 A111106 * A111108 A111109 A111110

KEYWORD

easy,nonn

AUTHOR

Dan Joyce (30pack(AT)sbcglobal.net), Oct 14 2005

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.