Constant solana_program::system_instruction::MAX_PERMITTED_ACCOUNTS_DATA_ALLOCATIONS_PER_TRANSACTION

pub const MAX_PERMITTED_ACCOUNTS_DATA_ALLOCATIONS_PER_TRANSACTION: i64 = _; // 20_971_520i64

Maximum permitted size of new allocations per transaction, in bytes.

The value was chosen such that at least one max sized account could be created, plus some additional resize allocations.