A256874 Numbers divisible by prime(d) for each digit d in their base-4 representation, none of which may be zero.

6, 15, 30, 42, 90, 102, 150, 255, 342, 426, 510, 618, 630, 666, 678, 750, 870, 990, 1386, 1434, 1446, 1470, 1530, 1626, 1638, 1686, 1710, 1770, 1950, 2010, 2394, 2406, 2430, 2454, 2490, 2550, 2646, 2670, 2730, 2790, 2910, 2970, 3030, 3450, 3510, 3690, 3750, 3930, 3990, 4095, 5466, 5478, 5526, 5550, 5610, 5718, 5790

Offset

1,1

Comments

Base-4 analog of A256786. See A256875 - A256879 for the base-5, ..., base-9 analogs.

See A256884 for a variant where divisibility by prime(d+1) is required instead.

Links

Table of n, a(n) for n=1..57.

Prog

(PARI) is(n, b=4)=!for(i=1, #d=Set(digits(n, b)), (!d[i]||n%prime(d[i]))&&return)

Crossrefs

Cf. A256786, A256875 - A256879, A256884.

Sequence in context: A355527 A336905 A097889 * A250121 A024802 A331073

Adjacent sequences: A256871 A256872 A256873 * A256875 A256876 A256877

Keyword

nonn,base

Author

M. F. Hasler, Apr 11 2015

Status

approved