Consegui implementar:


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#include <utility>


template <typename... Seqs>
class ConcatSeq;


template <uint8_t... Ints1>
struct ConcatSeq<std::integer_sequence<uint8_t, Ints1...>>
{
    using Type = typename std::integer_sequence<uint8_t, Ints1...>;
};

template <uint8_t... Ints1, uint8_t... Ints2>
struct ConcatSeq<std::integer_sequence<uint8_t, Ints1...>,
std::integer_sequence<uint8_t, Ints2...>>
{
    using Type = std::integer_sequence<uint8_t, Ints1..., Ints2...>;
};

template <uint8_t... Ints1, uint8_t... Ints2, typename... TailSeqs>
struct ConcatSeq<std::integer_sequence<uint8_t, Ints1...>,
std::integer_sequence<uint8_t, Ints2...>, TailSeqs...>
{
    using Type = typename ConcatSeq<std::integer_sequence<uint8_t, Ints1..., Ints2...>, TailSeqs...>::Type;
};


template <typename... Seqs>
using ConcatSeqType = typename ConcatSeq<Seqs...>::Type;


using ConcatSeqTest1 = ConcatSeqType<
    std::integer_sequence<uint8_t, 10>
>;

using ConcatSeqTest2 = ConcatSeqType<
    std::integer_sequence<uint8_t, 10>,
    std::integer_sequence<uint8_t, 20, 21>
>;

using ConcatSeqTest3 = ConcatSeqType<
    std::integer_sequence<uint8_t, 10>,
    std::integer_sequence<uint8_t, 20, 21>,
    std::integer_sequence<uint8_t, 30, 31, 32>
>;

using ConcatSeqTest4 = ConcatSeqType<
    std::integer_sequence<uint8_t, 10>,
    std::integer_sequence<uint8_t, 20, 21>,
    std::integer_sequence<uint8_t, 30, 31, 32>,
    std::integer_sequence<uint8_t, 40, 41, 42, 43>
>;
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