A115774 - OEIS

A115774

Integers i such that 15*i = A048720bi(23,i).

0, 5, 10, 20, 21, 40, 42, 80, 84, 85, 160, 168, 170, 320, 336, 340, 341, 640, 645, 672, 680, 682, 1280, 1285, 1290, 1344, 1360, 1364, 1365, 2560, 2565, 2570, 2580, 2581, 2688, 2693, 2720, 2728, 2730, 5120, 5125, 5130, 5140, 5141, 5160, 5162, 5376

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OFFSET

0,2

COMMENTS

Here * stands for ordinary multiplication and A048720 is the carryless (GF(2)[X]) multiplication.

LINKS

Table of n, a(n) for n=0..46.

Index entries for sequences defined by congruent products between domains N and GF(2)[X]

CROSSREFS

Cf. A048717, A115767, A115770. Subset of A115772 ? A115776 gives the terms of A115772 which do not occur here. Differs from A062052 for the first time at n=18, where A115774(18)=645 while A062052(18)=672. A115775 shows this sequence in binary.

Sequence in context: A345711 A300019 A115825 * A062052 A245387 A115799

Adjacent sequences: A115771 A115772 A115773 * A115775 A115776 A115777

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jan 30 2006

STATUS

approved