A097373 Numbers n such that there are no primes in a sequence formed from the t digits of n where the latter terms are given by rule b(i)=sum of t previous terms and the primes are counted from initial t digits up to the largest term < n^2; where zeros are located in A098598.

40, 44, 46, 48, 60, 64, 66, 68, 69, 80, 84, 86, 88, 90, 96, 99, 194, 400, 404, 406, 408, 440, 444, 446, 448, 460, 464, 466, 468, 480, 484, 486, 488, 600, 604, 606, 608, 609, 640, 644, 646, 648, 660, 664, 666, 668, 669, 680, 684, 686, 688, 690, 696, 699, 800

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Example

194 is in the sequence because 1, 9, 4, 14, 27, 45, 86, 158, 289, 533, 980, 1802, 3315, 6097, 11214, 20626 contains no primes.

Crossrefs

Cf. A098598.

Sequence in context: A131535 A118473 A118635 * A095513 A095505 A095497

Adjacent sequences: A097370 A097371 A097372 * A097374 A097375 A097376

Keyword

base,nonn

Author

Jason Earls, Sep 18 2004

Status

approved