A075523 First nonprime reached when starting with the n-th prime p and iterating the map k -> 4*k+(p mod 4), or -1 if no integer is ever reached.

10, 15, 21, 511, 767, 213, 69, 319, 95, 117, 511, 597, 165, 175, 767, 213, 959, 245, 4351, 287, 1173, 319, 335, 357, 1557, 405, 415, 1727, 437, 453, 511, 527, 549, 559, 597, 2431, 629, 655, 671, 693, 46079, 725, 767, 3093, 789, 799, 847, 895, 3647, 917

Offset

1,1

Links

Table of n, a(n) for n=1..50.

Crossrefs

Cf. A075520, A075522, A075524.

Sequence in context: A048045 A257631 A115682 * A115679 A337610 A109373

Adjacent sequences: A075520 A075521 A075522 * A075524 A075525 A075526

Keyword

nonn

Author

Reinhard Zumkeller, Sep 19 2002

Status

approved